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Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Eli Whitney Armory, Forge Building, Mill River, Hamden, New Haven County, CT

Eli Whitney Armory, Forge Building, Mill River, Hamden, New Haven Coun...

Significance: An important part of Whitney's early manufacturing process. Archeological excavation of this building revealed the early water-power system, several original forge bases, and two large machinery ... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Hooded Fireplace Pueblito, On a northern point of Superior Mesa about 700 meters west of Largo Canyon Wash, Dulce, Rio Arriba County, NM

Hooded Fireplace Pueblito, On a northern point of Superior Mesa about ...

Significance: The Pueblo Revolt of 1680 and subsequent Spanish reconquest of 1692 forced many pueblo tribes to flee northwestward and seek temporary refuge in the traditional homeland of the Navajo, Dinetah. Ho... More

Chain of Craters Road, Volcano, Hawaii County, HI

Chain of Craters Road, Volcano, Hawaii County, HI

Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosystems and archaeological sites. It represents the traditional NPS ... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Hamden, New Haven County, CT

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Ha...

Significance: Location of the musket factory of Eli Whitney, an important contributor to the development of the American System of Manufacturing. It was here that Whitney attempted a system of production that ... More

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Hamden, New Haven County, CT

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Ha...

Significance: Location of the musket factory of Eli Whitney, an important contributor to the development of the American System of Manufacturing. It was here that Whitney attempted a system of production that ... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Spruce Tree Point, Museum, Mesa Verde Administrative District, Cortez, Montezuma County, CO

Spruce Tree Point, Museum, Mesa Verde Administrative District, Cortez,...

Unprocessed Field note material exists for this structure: N395 Survey number: HABS CO-132-A Building/structure dates: 1923-1924 Initial Construction National Register of Historic Places NRIS Number: 87001410

Chain of Craters Road, Volcano, Hawaii County, HI

Chain of Craters Road, Volcano, Hawaii County, HI

Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosystems and archaeological sites. It represents the traditional NPS ... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Hamden, New Haven County, CT

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Ha...

Significance: Location of the musket factory of Eli Whitney, an important contributor to the development of the American System of Manufacturing. It was here that Whitney attempted a system of production that ... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Chain of Craters Road, Volcano, Hawaii County, HI

Chain of Craters Road, Volcano, Hawaii County, HI

Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosystems and archaeological sites. It represents the traditional NPS ... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Hamden, New Haven County, CT

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Ha...

Significance: Location of the musket factory of Eli Whitney, an important contributor to the development of the American System of Manufacturing. It was here that Whitney attempted a system of production that ... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Spruce Tree Point, Museum, Mesa Verde Administrative District, Cortez, Montezuma County, CO

Spruce Tree Point, Museum, Mesa Verde Administrative District, Cortez,...

Unprocessed Field note material exists for this structure: N395 Survey number: HABS CO-132-A Building/structure dates: 1923-1924 Initial Construction National Register of Historic Places NRIS Number: 87001410

State Bridge No. 177, Brackenville Road, Spanning Mill Creek, Hockessin, New Castle County, DE

State Bridge No. 177, Brackenville Road, Spanning Mill Creek, Hockessi...

Significance: Bridge No. 177 is a representative example of a stone single-arch wagon bridge, typical of mid-nineteenth-century bridges built with local labor and materials along roads in New Castle County and ... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Hamden, New Haven County, CT

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Ha...

Significance: Location of the musket factory of Eli Whitney, an important contributor to the development of the American System of Manufacturing. It was here that Whitney attempted a system of production that ... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Hooded Fireplace Pueblito, On a northern point of Superior Mesa about 700 meters west of Largo Canyon Wash, Dulce, Rio Arriba County, NM

Hooded Fireplace Pueblito, On a northern point of Superior Mesa about ...

Significance: The Pueblo Revolt of 1680 and subsequent Spanish reconquest of 1692 forced many pueblo tribes to flee northwestward and seek temporary refuge in the traditional homeland of the Navajo, Dinetah. Ho... More

Chain of Craters Road, Volcano, Hawaii County, HI

Chain of Craters Road, Volcano, Hawaii County, HI

Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosystems and archaeological sites. It represents the traditional NPS ... More

Chain of Craters Road, Volcano, Hawaii County, HI

Chain of Craters Road, Volcano, Hawaii County, HI

Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosystems and archaeological sites. It represents the traditional NPS ... More

Eli Whitney Armory, Forge Building, Mill River, Hamden, New Haven County, CT

Eli Whitney Armory, Forge Building, Mill River, Hamden, New Haven Coun...

Significance: An important part of Whitney's early manufacturing process. Archeological excavation of this building revealed the early water-power system, several original forge bases, and two large machinery ... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Hamden, New Haven County, CT

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Ha...

Significance: Location of the musket factory of Eli Whitney, an important contributor to the development of the American System of Manufacturing. It was here that Whitney attempted a system of production that ... More

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Hamden, New Haven County, CT

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Ha...

Significance: Location of the musket factory of Eli Whitney, an important contributor to the development of the American System of Manufacturing. It was here that Whitney attempted a system of production that ... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hooded Fireplace Pueblito, On a northern point of Superior Mesa about 700 meters west of Largo Canyon Wash, Dulce, Rio Arriba County, NM

Hooded Fireplace Pueblito, On a northern point of Superior Mesa about ...

Significance: The Pueblo Revolt of 1680 and subsequent Spanish reconquest of 1692 forced many pueblo tribes to flee northwestward and seek temporary refuge in the traditional homeland of the Navajo, Dinetah. Ho... More

Eli Whitney Armory, Forge Building, Mill River, Hamden, New Haven County, CT

Eli Whitney Armory, Forge Building, Mill River, Hamden, New Haven Coun...

Significance: An important part of Whitney's early manufacturing process. Archeological excavation of this building revealed the early water-power system, several original forge bases, and two large machinery ... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Hamden, New Haven County, CT

Eli Whitney Armory, West of Whitney Avenue, Armory Street Vicinity, Ha...

Significance: Location of the musket factory of Eli Whitney, an important contributor to the development of the American System of Manufacturing. It was here that Whitney attempted a system of production that ... More

Green Hill Plantation, Granary, State Route 728, Long Island, Campbell County, Virginia

Green Hill Plantation, Granary, State Route 728, Long Island, Campbell...

Significance: "Green Hill" plantation was built by Samuel Pannill who first bought 600 acres from William and Moses Fuqua in 1797, and added to and developed the plantation 'til his death in 1864. According to ... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

Hawaii Volcanoes National Park Roads, Volcano, Hawaii County, HI

See Thurston Lava Tube, HALS HI-6, for additional documentation. Significance: The Hawaii Volcanoes National Park road system provides access to active volcanoes and related landscapes along with varied ecosyst... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Hooded Fireplace Pueblito, On a northern point of Superior Mesa about 700 meters west of Largo Canyon Wash, Dulce, Rio Arriba County, NM

Hooded Fireplace Pueblito, On a northern point of Superior Mesa about ...

Significance: The Pueblo Revolt of 1680 and subsequent Spanish reconquest of 1692 forced many pueblo tribes to flee northwestward and seek temporary refuge in the traditional homeland of the Navajo, Dinetah. Ho... More

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Branch of Susquehanna River South bank, 500 feet East of Jay Street Bridge, Lock Haven, Clinton County, PA

Bald Eagle Cross-Cut Canal Lock, North of Water Street along West Bran...

Significance: Lock No. 35 is a historically significant remnant of the Pennsylvania state-built canal system. The lock is the sole surviving structure of the Bald Eagle Cross-Cut Canal, a lateral line construc... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River, 0.25 mile Northeast of Ninth Street Bridge, Pittsburgh, Allegheny County, PA

Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...

Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More

Haleakala National Park Roads, Pukalani, Maui County, HI

Haleakala National Park Roads, Pukalani, Maui County, HI

STORED OFF SITE AND ON SITE. mchr Significance: The Haleakala National Park road system provides access to the summit and crater of the dormant volcano, Haleakala, showcasing striking views and native Hawaiian... More

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