Kaukauna Lock & Dam, Storage Building at Lock 4, Approximately 15 feet...
Significance: The storage shed functions as part of the daily operation of the Kaukauna Locks and Dam Complex. Survey number: HAER WI-87-P Building/structure dates: after 1982 Initial Construction
Little Chute Lock & Dam, Lock Shelter at Lock 2, On Southern Embankmen...
Significance: The lock shelter provides shelter for the lockkeeper while on active duty. In addition, the lock shelter provides office space and first aid facilities for office personnel. As such the lock shelt... More
St. Mary's Falls Canal, Soo Locks, Military Defense Subcomplex, Buildi...
Significance: Building No. 5 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo... More
Kaukauna Lock & Dam, Storage Building at Lock 3, Approximately 20 feet...
Significance: The storage building functions as part of the daily operation of the Kaukauna Locks and Dam Complex. Survey number: HAER WI-87-I Building/structure dates: 1982 Initial Construction
Kaukauna Lock & Dam, Storage Building at Lock 2, Approximately 40 feet...
Significance: The storage building functions as part of the daily operation of the Kaukauna Locks and Dam Complex. Survey number: HAER WI-87-G Building/structure dates: 1982 Initial Construction
North Entrance Road, Between Gardiner, MT & Mammoth Hot Springs, WY, G...
Significance: The North Entrance Road was for years the most popular entrance to Yellowstone National Park, and remains an important gateway. Survey number: HAER MT-93 Building/structure dates: 1879 Initial C... More
Little Kaukauna Lock & Dam, Lock Shelter, On northern embankment, near...
Significance: The lock shelter provides shelter for the lockkeeper while on active duty. Further, the lock shelter provides office space and first aid facilities for office personnel. As such the lock shelter f... More
Kaukauna Lock & Dam, Garage at Lock 5, Approximately 20 feet West of L...
Significance: The garage is boarded shut and is currently not in use. It was part of the former lockkeeper's complex which is no longer extant. Survey number: HAER WI-87-R Building/structure dates: 1955 Initi... More
First Presbyterian Church of Niobrara, Southeast corner of Sixth & Map...
Significance: The Presbyterian Church, built in 1882, was the first church to be constructed in what was then the "new" townsite of Niobrara (established 1881). The congregation itself is believed to be the ol... More
Nike Hercules Missile Battery Site Summit, Mount Gordon Lyon, Anchorag...
See also HAER AK-18 for additional documentation. Significance: Military period of significance: 1959-1979. Site Summit, a former United States Army Nike Hercules missile installation, is one of the most intact... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 21, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Crater Lake National Park Roads, Klamath Falls, Klamath County, OR
Significance: The primary roads in Crater Lake National Park were designed and constructed to provide visitor access to the park's scenic features, which are largely concentrated along the rim of Crater Lake. ... More
Chickamauga National Military Park Tour Roads, Fort Oglethorpe, Catoos...
Significance: The Chickamauga and Chattanooga National Military Park tour roads provide access to select areas of the park that commemorate and interpret the conflict between Union and Confederate forces over c... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 15, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 15, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 15, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Cape Canaveral Air Station, Launch Complex 17, Facility 28409, East en...
Survey number: HAER FL-8-5-L Building/structure dates: 1956 National Register of Historic Places NRIS Number: 84003872
MacDill Air Force Base, Water Pumping Plant No. 1, 2834 Sea Swallow Av...
Significance: The Water Pump Plant, due to its architectural integrity and contribution to the Second World War-era infrastructure, forms an integral part of MacDill Air Force Base's historic character. The st... More
MacDill Air Force Base, Mess Hall, 2106 Florida Keys Avenue, Tampa, Hi...
Significance: The Mess Hall, due to its architectural integrity and its contribution to the Second World War-era infrastructure, is an integral part of MacDill Air Force Base's historic character. The building... More
MacDill Air Force Base, Mess Hall, 2106 Florida Keys Avenue, Tampa, Hi...
Significance: The Mess Hall, due to its architectural integrity and its contribution to the Second World War-era infrastructure, is an integral part of MacDill Air Force Base's historic character. The building... More
St. Mary's Falls Canal, Soo Locks, Sabin Lock Subcomplex, St. Mary's R...
Significance: Erected between 1913 and 1919, the Sabin Lock subcomplex is significant as a component of the overall Soo complex. As such, it played an integral role in accommodating navigation on the St. Marys... More
Jet Propulsion Laboratory Edwards Facility, Edwards Air Force Base, Bo...
Significance: Operated by the California Institute of Technology, the Jet Propulsion Laboratory Edward Facility was the United States' first university-sponsored research and testing facility for the developmen... More
MacDill Air Force Base, Field Officers' Quarters, 2112 Staff Circle, T...
See HABS FL-384-AM for measured drawings. Significance: The officers' quarters, due to their architectural integrity and their contribution to the Second World War-era infrastructure, are an integral part of Ma... More
MacDill Air Force Base, Field Officers' Quarters, 2112 Staff Circle, T...
See HABS FL-384-AM for measured drawings. Significance: The officers' quarters, due to their architectural integrity and their contribution to the Second World War-era infrastructure, are an integral part of Ma... More
Arlington National Cemetery, USS Maine Memorial, Arlington, Arlington ...
Significance: "Remember the Maine" was the popular call of the "yellow" or sensational press, Congress, and private citizens throughout the United States as they rallied around the tragedy of 1898. The sinking ... More
Arlington National Cemetery, USS Maine Memorial, Arlington, Arlington ...
Significance: "Remember the Maine" was the popular call of the "yellow" or sensational press, Congress, and private citizens throughout the United States as they rallied around the tragedy of 1898. The sinking ... More
Fort Funston, Panama Mounts for 155mm Guns, Skyline Boulevard & Great ...
Significance: The Panama mounts of Battery Bluff are significant as they are a contributing feature to the Fort Funston Historic District which is considered eligible for listing in the National Register of His... More
MacDill Air Force Base, Armament & Instrument Inspection & Adjustment ...
Significance: The Armament and Inspection Building, due to its architectural integrity and its contribution to the Second World War-era infrastructure, is an integral part of MacDill Air Force Base's historic c... More
DeGray Creek Bridge, Spanning DeGray Creek at Blish Road (CR 50), Arka...
Significance: The American practice of using pins for bridge connections lasted from the 1860s until the 1920s. DeGray Creek Bridge is the only known surviving pin-connected Pratt pony truss bridge in Arkansas... More
Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More
Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More
Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More
Little Kaukauna Lock & Dam, At 23-mile marker on Lower Fox River, Rock...
Significance: The Little Kaukauna Lock and Dam Complex allows passage for watercraft around the rapids present in the Lower Fox River at Little Kaukauna. Survey number: HAER WI-89 Building/structure dates: 18... More
Ellsworth Air Force Base, Airmen's Dormitory, 1470 Luke Street, Blackh...
Significance: The Airmen's Dormitory was one of seventeen dormitories built in 1951 to house 74 men each. It represents Ellsworth's significant growth in both size and function during the Cold War era. Ellswort... More
MacDill Air Force Base, Quartermaster Warehouse, 7605 Hillsborough Loo...
Significance: The Quartermaster Warehouse, due to its architectural integrity and contribution to the Second World War-era infrastructure, forms an integral part of MacDill Air Force Base's historic character. ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 16, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 16, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 16, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 16, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
St. Mary's Falls Canal, Soo Locks, St. Mary's River at Falls, Sault St...
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe... More
Oakland Army Base, Storehouse Type, Ukraine & Maritime Streets, Oaklan...
Significance: The support activities conducted in these facilities were integral to the success of the Installation's World War II mission. Survey number: HAER CA-125-K Building/structure dates: 1943 Initial ... More
Oakland Army Base, Storehouse Type, Ukraine & Maritime Streets, Oaklan...
Significance: The support activities conducted in these facilities were integral to the success of the Installation's World War II mission. Survey number: HAER CA-125-K Building/structure dates: 1943 Initial ... More
Hill Field, Aircraft Operations Hangar, 5970 Southgate Avenue, Layton,...
Significance: The primary mission of the Hill Field during and after World War II was to repair, maintain, and store aircraft, and also to receive, store and supply air materiel. Building 1, the Aircraft Opera... More
Hill Field, Aircraft Operations Hangar, 5970 Southgate Avenue, Layton,...
Significance: The primary mission of the Hill Field during and after World War II was to repair, maintain, and store aircraft, and also to receive, store and supply air materiel. Building 1, the Aircraft Opera... More
Ellsworth Air Force Base, Mess Hall & Administration Building, 1301 El...
Significance: The Mess Hall and Administration Building (Building No. 1211) is one of at least four men's mess halls constructed at the base during the early 1950s; all are of a similar configuration, and are p... More
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
State Bank of Niobrara, Elm Street, Niobrara, Knox County, NE
Significance: Since the 1920s, the State Bank of Niobrara, organized in 1913, served as the only bank for the Niobrara community. Architecturally, it is a good example of the Georgian Revival style in the Neo-... More
Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pit...
Includes index to related materials in National Archives RG 77. Significance: As the first lock and dam on the Ohio River, the Davis Island Lock and Dam was an experimental project testing the skills of the 19t... More
Arlington National Cemetery, Old Amphitheater, Arlington, Arlington Co...
Significance: In 1868, General John Logan from the Headquarters of the Grand Army of the Republic (G.A.R.) declared May 30th a day of remembrance for Union soldiers who had died in the Civil War. President Joh... More
Arlington National Cemetery, Old Amphitheater, Arlington, Arlington Co...
Significance: In 1868, General John Logan from the Headquarters of the Grand Army of the Republic (G.A.R.) declared May 30th a day of remembrance for Union soldiers who had died in the Civil War. President Joh... More
Parsons Nursery, Wash House, South side of U.S. Route 219, Parsons, Tu...
Significance: The wash house, built in 1939, was the only nursery building constructed by the members of Camp Parsons Civilian Conservation Corps Camp, according to John King. This building provided larger loc... More
Cape Canaveral Air Station, Launch Complex 17, Facility 36006, East en...
Survey number: HAER FL-8-5-U Building/structure dates: 1956 Initial Construction National Register of Historic Places NRIS Number: 84003872
Bear Trap Dam, State Route 115, Stoddartsville, Luzerne County, PA
Significance: The dam is the best preserved example of the two remaining dams from a one-way slack water navigation system for carrying coal, lumber, and milled products down the Lehigh River. Developed by Josi... More
MacDill Air Force Base, WAC Mess Hall, 8714 Hillsborough Loop Drive, T...
Significance: The former Women's Army Corps Mess Hall, due to its architectural integrity and its contribution to the Second World War-era infrastructure, is an integral part of MacDill Air Force Base's histori... More
MacDill Air Force Base, WAC Mess Hall, 8714 Hillsborough Loop Drive, T...
Significance: The former Women's Army Corps Mess Hall, due to its architectural integrity and its contribution to the Second World War-era infrastructure, is an integral part of MacDill Air Force Base's histori... More
Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...
Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... More
Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...
Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... More
Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...
Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... More
Kaukauna Lock & Dam, Project Office at Lock 3, Approximately 75 feet N...
Significance: The project office serves as headquarters for the Fox River Project and as such is an important part of the daily operation of the Kaukauna Locks and Dam Complex and the entire Lower Fox River Wat... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Mark Twain Memorial Bridge, Spanning Mississippi River at US Route 36,...
Significance: The Mark Twain Memorial Bridge is significant as one of the state's most monumental examples of cantilevered steel truss construction. Also, it has served as a pivotal link for regional transport... More
Mark Twain Memorial Bridge, Spanning Mississippi River at US Route 36,...
Significance: The Mark Twain Memorial Bridge is significant as one of the state's most monumental examples of cantilevered steel truss construction. Also, it has served as a pivotal link for regional transport... More
Mark Twain Memorial Bridge, Spanning Mississippi River at US Route 36,...
Significance: The Mark Twain Memorial Bridge is significant as one of the state's most monumental examples of cantilevered steel truss construction. Also, it has served as a pivotal link for regional transport... More
Mark Twain Memorial Bridge, Spanning Mississippi River at US Route 36,...
Significance: The Mark Twain Memorial Bridge is significant as one of the state's most monumental examples of cantilevered steel truss construction. Also, it has served as a pivotal link for regional transport... More
Mark Twain Memorial Bridge, Spanning Mississippi River at US Route 36,...
Significance: The Mark Twain Memorial Bridge is significant as one of the state's most monumental examples of cantilevered steel truss construction. Also, it has served as a pivotal link for regional transport... More
Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...
Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More
Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...
Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More
Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...
Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More
Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...
Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More
Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie Co...
Significance: The Kaukauna Locks and Dam Complex provides passage around drop in elevation of 50 feet in the Lower Fox River at Kaukauna. The complex served as an integral part of the Lower Fox River Waterway ... More
Hassler Bridge, Spanning Obey River at State Route 42, Byrdstown, Pick...
Significance: The bridge is a late example of metal truss design, which was a standard of the Tennessee Highway Department since 1920. The bridge is also a tangible artifact of the lifestyle and economic change... More
Hassler Bridge, Spanning Obey River at State Route 42, Byrdstown, Pick...
Significance: The bridge is a late example of metal truss design, which was a standard of the Tennessee Highway Department since 1920. The bridge is also a tangible artifact of the lifestyle and economic change... More
Cape Canaveral Air Station, Launch Complex 17, Facility 28420, East en...
Survey number: HAER FL-8-5-X Building/structure dates: 1956 Initial Construction National Register of Historic Places NRIS Number: 84003872
Ellsworth Air Force Base, Readiness Building, 810 Kenny Road, Blackhaw...
This structure was demolished in 1996. Significance: The Ellsworth Air Force Base Dormitory is significant for its association with American military policy during the Cold War years of the early 1950s. During ... More
Ellsworth Air Force Base, Readiness Building, 810 Kenny Road, Blackhaw...
This structure was demolished in 1996. Significance: The Ellsworth Air Force Base Dormitory is significant for its association with American military policy during the Cold War years of the early 1950s. During ... More
Stanley R. Mickelsen Safeguard Complex, Perimeter Acquisition Radar Bu...
Significance: It is believed that the plans for deployment and initiation of construction of this facility were instrumental in obtaining Soviet agreement to the Anti-Ballistic Missile Treaty and a subsequent d... More
Stanley R. Mickelsen Safeguard Complex, Perimeter Acquisition Radar Bu...
Significance: It is believed that the plans for deployment and initiation of construction of this facility were instrumental in obtaining Soviet agreement to the Anti-Ballistic Missile Treaty and a subsequent d... More
Stanley R. Mickelsen Safeguard Complex, Perimeter Acquisition Radar Bu...
Significance: It is believed that the plans for deployment and initiation of construction of this facility were instrumental in obtaining Soviet agreement to the Anti-Ballistic Missile Treaty and a subsequent d... More
Pleasant Valley Roller Mill, Gruber Road, Bernville, Berks County, PA
Significance: This handsome masonry building, minus its 1946 frame addition, is highly typical of canal-related mils in the region. Although it clearly reflects its proximity to the Union Canal, it occupied th... More
Pleasant Valley Roller Mill, Gruber Road, Bernville, Berks County, PA
Significance: This handsome masonry building, minus its 1946 frame addition, is highly typical of canal-related mils in the region. Although it clearly reflects its proximity to the Union Canal, it occupied th... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Mount Gleason Nike Missile Site, Angeles National Forest, South of Sol...
Significance: The Mt. Gleason facility is significant for several reasons. It was the first Nike unit planned and constructed in the Angeles National Forest, and it operated for the longest period of time amon... More
Mount Gleason Nike Missile Site, Angeles National Forest, South of Sol...
Significance: The Mt. Gleason facility is significant for several reasons. It was the first Nike unit planned and constructed in the Angeles National Forest, and it operated for the longest period of time amon... More
Mount Gleason Nike Missile Site, Angeles National Forest, South of Sol...
Significance: The Mt. Gleason facility is significant for several reasons. It was the first Nike unit planned and constructed in the Angeles National Forest, and it operated for the longest period of time amon... More