Hacienda Azucarera El Coto, Sugar Mill Ruins, .5 Mi. SW of Rt. 347 Bri...
Unprocessed Field note material exists for this structure: FN-3 Survey number: HAER PR-3 Building/structure dates: ca. 1852 Initial Construction
Hacienda Azucarera El Coto, Sugar Mill Ruins, .5 Mi. SW of Rt. 347 Bri...
Unprocessed Field note material exists for this structure: FN-3 Survey number: HAER PR-3 Building/structure dates: ca. 1852 Initial Construction
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
American Falls Water, Power & Light Company, Island Power Plant, Snake...
Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More
American Falls Water, Power & Light Company, Island Power Plant, Snake...
Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More
Houston-White Company Mill & Basket Factory, Main Street & Railroad Av...
Significance: The history of the Houston-White company demonstrates how changes in agricultural production significantly altered the produce basket industry in the late 19th and early 20th centuries. Unprocess... More
Pawtucket Canal, Lower Locks, Lowell, Middlesex County, MA
Significance: The Lower Locks are comprised of two navigation locks and a dam, with a head of 17 feet. They were some of the earliest locks in the Lowell Canal System, originally constructed in the first phase... More
Pawtucket Canal, Lower Locks, Lowell, Middlesex County, MA
Significance: The Lower Locks are comprised of two navigation locks and a dam, with a head of 17 feet. They were some of the earliest locks in the Lowell Canal System, originally constructed in the first phase... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Liston Range Rear Light, County Road 2, Biddles Corner, New Castle Cou...
Significance: The Liston Range Rear Light merits attention for two reasons. First, it is a river range light a type virtually ignored in the historical literature on lighthouses. Secondly, it is a wrought i... More
J. H. Wilkerson & Sons Brick Works, Front Street (Road 409), Milford, ...
Significance: J.H. Wilkerson and Son was one of the last local brick works to operate in Delaware. IN 1975, all the original machinery, as well as some later additions, were still in operational positions, pro... More
J. H. Wilkerson & Sons Brick Works, Front Street (Road 409), Milford, ...
Significance: J.H. Wilkerson and Son was one of the last local brick works to operate in Delaware. IN 1975, all the original machinery, as well as some later additions, were still in operational positions, pro... More
J. H. Wilkerson & Sons Brick Works, Front Street (Road 409), Milford, ...
Significance: J.H. Wilkerson and Son was one of the last local brick works to operate in Delaware. IN 1975, all the original machinery, as well as some later additions, were still in operational positions, pro... More
Hacienda Azucarera La Concepcion, Sugar Mill Ruins, .3 Mi. W. of Junct...
Significance: Hacienda La Concepcion was established on the old banks of the Culebrinas River by the family of Dona Eulalia Quinones. In 1868, her husband, Jose Nestor Cardona, installed the steam engine and m... More
Hacienda Azucarera La Concepcion, Sugar Mill Ruins, .3 Mi. W. of Junct...
Significance: Hacienda La Concepcion was established on the old banks of the Culebrinas River by the family of Dona Eulalia Quinones. In 1868, her husband, Jose Nestor Cardona, installed the steam engine and m... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA
Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More
Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA
Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More
Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA
Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More
Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA
Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More
Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA
Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More
Hacienda Azucarera El Coto, Sugar Mill Ruins, .5 Mi. SW of Rt. 347 Bri...
Unprocessed Field note material exists for this structure: FN-3 Survey number: HAER PR-3 Building/structure dates: ca. 1852 Initial Construction
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
American Falls Water, Power & Light Company, Island Power Plant, Snake...
Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More
American Falls Water, Power & Light Company, Island Power Plant, Snake...
Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More
Hacienda Azucarera La Esperanza, 2.65 mi. N of Rte. 2 bridge over Mana...
Significance: Hacienda La Esperanza, one of the many remains of sugar haciendas extant in Puerto Rico today, is distinguished by the six-column steam engine and matching sugar mill which survive on the site. T... More
Houston-White Company Mill & Basket Factory, Main Street & Railroad Av...
Significance: The history of the Houston-White company demonstrates how changes in agricultural production significantly altered the produce basket industry in the late 19th and early 20th centuries. Unprocess... More
Houston-White Company Mill & Basket Factory, Main Street & Railroad Av...
Significance: The history of the Houston-White company demonstrates how changes in agricultural production significantly altered the produce basket industry in the late 19th and early 20th centuries. Unprocess... More
Houston-White Company Mill & Basket Factory, Main Street & Railroad Av...
Significance: The history of the Houston-White company demonstrates how changes in agricultural production significantly altered the produce basket industry in the late 19th and early 20th centuries. Unprocess... More
Houston-White Company Mill & Basket Factory, Main Street & Railroad Av...
Significance: The history of the Houston-White company demonstrates how changes in agricultural production significantly altered the produce basket industry in the late 19th and early 20th centuries. Unprocess... More
Pawtucket Canal, Lower Locks, Lowell, Middlesex County, MA
Significance: The Lower Locks are comprised of two navigation locks and a dam, with a head of 17 feet. They were some of the earliest locks in the Lowell Canal System, originally constructed in the first phase... More
Pawtucket Canal, Lower Locks, Lowell, Middlesex County, MA
Significance: The Lower Locks are comprised of two navigation locks and a dam, with a head of 17 feet. They were some of the earliest locks in the Lowell Canal System, originally constructed in the first phase... More
Reedy Island Range Rear Light, Route 9, Taylors Corner, New Castle Cou...
Significance: Built in 1910 after plans originating at least as early as 1895, the Reedy Island Range Rear Light is a fine example of a cast-iron tower erected by the U.S. Lighthouse Establishment. This type o... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
J. H. Wilkerson & Sons Brick Works, Front Street (Road 409), Milford, ...
Significance: J.H. Wilkerson and Son was one of the last local brick works to operate in Delaware. IN 1975, all the original machinery, as well as some later additions, were still in operational positions, pro... More
Hacienda Azucarera La Concepcion, Sugar Mill Ruins, .3 Mi. W. of Junct...
Significance: Hacienda La Concepcion was established on the old banks of the Culebrinas River by the family of Dona Eulalia Quinones. In 1868, her husband, Jose Nestor Cardona, installed the steam engine and m... More
Hacienda Azucarera La Concepcion, Sugar Mill Ruins, .3 Mi. W. of Junct...
Significance: Hacienda La Concepcion was established on the old banks of the Culebrinas River by the family of Dona Eulalia Quinones. In 1868, her husband, Jose Nestor Cardona, installed the steam engine and m... More
Hacienda Azucarera La Concepcion, Sugar Mill Ruins, .3 Mi. W. of Junct...
Significance: Hacienda La Concepcion was established on the old banks of the Culebrinas River by the family of Dona Eulalia Quinones. In 1868, her husband, Jose Nestor Cardona, installed the steam engine and m... More
Hacienda Azucarera La Concepcion, Sugar Mill Ruins, .3 Mi. W. of Junct...
Significance: Hacienda La Concepcion was established on the old banks of the Culebrinas River by the family of Dona Eulalia Quinones. In 1868, her husband, Jose Nestor Cardona, installed the steam engine and m... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA
Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More
Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA
Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More
Eastburn-Jeanes Limekilns, On Papermill Road & on Pike Creek Road, New...
Significance: The limestone/marble deposits in the Pike Creek Valley of New Castle County are the largest in the State of Delaware. During the first third of the 19th century they became the center of an exten... More
Eastburn-Jeanes Limekilns, On Papermill Road & on Pike Creek Road, New...
Significance: The limestone/marble deposits in the Pike Creek Valley of New Castle County are the largest in the State of Delaware. During the first third of the 19th century they became the center of an exten... More
Hacienda Azucarera El Coto, Sugar Mill Ruins, .5 Mi. SW of Rt. 347 Bri...
Unprocessed Field note material exists for this structure: FN-3 Survey number: HAER PR-3 Building/structure dates: ca. 1852 Initial Construction
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
Noxontown Mill, Noxontown Road (County Road 38), Middletown, New Castl...
Significance: Noxontown Mill was typical of the small grain-milling establishments that predominated in Delaware throughout the colonial period. But it was atypical in the sense that it survived so long. In 1... More
Houston-White Company Mill & Basket Factory, Main Street & Railroad Av...
Significance: The history of the Houston-White company demonstrates how changes in agricultural production significantly altered the produce basket industry in the late 19th and early 20th centuries. Unprocess... More
Houston-White Company Mill & Basket Factory, Main Street & Railroad Av...
Significance: The history of the Houston-White company demonstrates how changes in agricultural production significantly altered the produce basket industry in the late 19th and early 20th centuries. Unprocess... More
Houston-White Company Mill & Basket Factory, Main Street & Railroad Av...
Significance: The history of the Houston-White company demonstrates how changes in agricultural production significantly altered the produce basket industry in the late 19th and early 20th centuries. Unprocess... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Liston Range Rear Light, County Road 2, Biddles Corner, New Castle Cou...
Significance: The Liston Range Rear Light merits attention for two reasons. First, it is a river range light a type virtually ignored in the historical literature on lighthouses. Secondly, it is a wrought i... More
J. H. Wilkerson & Sons Brick Works, Front Street (Road 409), Milford, ...
Significance: J.H. Wilkerson and Son was one of the last local brick works to operate in Delaware. IN 1975, all the original machinery, as well as some later additions, were still in operational positions, pro... More
J. H. Wilkerson & Sons Brick Works, Front Street (Road 409), Milford, ...
Significance: J.H. Wilkerson and Son was one of the last local brick works to operate in Delaware. IN 1975, all the original machinery, as well as some later additions, were still in operational positions, pro... More
J. H. Wilkerson & Sons Brick Works, Front Street (Road 409), Milford, ...
Significance: J.H. Wilkerson and Son was one of the last local brick works to operate in Delaware. IN 1975, all the original machinery, as well as some later additions, were still in operational positions, pro... More
J. H. Wilkerson & Sons Brick Works, Front Street (Road 409), Milford, ...
Significance: J.H. Wilkerson and Son was one of the last local brick works to operate in Delaware. IN 1975, all the original machinery, as well as some later additions, were still in operational positions, pro... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
San Francisco Cable Railway, Washington & Mason Streets, San Francisco...
also CAL, 38-SANFRA-137-A- San Francisco Railway: Cable Car Powerhouse & Barn Significance: The last operating cable railroad in the world. Representative of an important type of urban transportation system in... More
Pawtucket Canal, Swamp Locks, Pawtucket & Merrimack Canals, Lowell, Mi...
Significance: The Swamp Locks complex consists of a flight of two navigation locks with a dam at the west end of the upper lock. The original locks opened in 1797, and were rebuilt in 1822-1823 when this confi... More
Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA
Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More
Hacienda Azucarera El Coto, Sugar Mill Ruins, .5 Mi. SW of Rt. 347 Bri...
Unprocessed Field note material exists for this structure: FN-3 Survey number: HAER PR-3 Building/structure dates: ca. 1852 Initial Construction
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
American Falls Water, Power & Light Company, Island Power Plant, Snake...
Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More
American Falls Water, Power & Light Company, Island Power Plant, Snake...
Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More
American Falls Water, Power & Light Company, Island Power Plant, Snake...
Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More
American Falls Water, Power & Light Company, Island Power Plant, Snake...
Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More