U.S. Naval Base Charleston, Building No. 32 Smokestack, Hobson Avenue,...
Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.
U.S. Naval Base Charleston, Building No. 32 Smokestack, Hobson Avenue,...
Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Freeport Sulphur Company. Hoskins Mound, Texas. Pipe storage. Pipeline...
Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Baytown, Texas. Pipelines leading to a barge loading dock at a refiner...
Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.
Freeport Sulphur Company, Grand Ecaille, Louisiana. Powerhouse and pip...
Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Phillips gasoline plant. Borger, Texas. Pipelines and the fractionatin...
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
Andrews County, Texas. Bringing pipelines to new oil line
Public domain photograph of American farm workers, countryside in the 1930s, free to use, no copyright restrictions image - Picryl description
U.S. Naval Base Charleston, Building No. 32 Smokestack, Hobson Avenue,...
Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.
U.S. Naval Base Charleston, Building No. 32 Smokestack, Hobson Avenue,...
Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.
U.S. Naval Base Charleston, Building No. 32 Smokestack, Hobson Avenue,...
Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
"Deadman Syphon" of the L.A. aqueduct, eleven foot steel pipe carrying...
J262182 U.S. Copyright Office. From the series: The California Missions and the State of California. Irrigation 7. No. 173.
Pipelines leading from refinery to gasoline plant. Borger, Texas
Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description
U.S. Naval Base Charleston, Building No. 32 Smokestack, Hobson Avenue,...
Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Tulsa, Oklahoma. Storage tanks and pipelines at the Mid-continent refi...
Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.
Borger, Texas. Pipelines leading from the gasoline plant to the refine...
Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description
Pipelines along the channel carries water from Port Sulphur to Grand E...
Public domain photograph of 1930s-1940s bridge, no copyright restrictions image - Picryl description
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Hondius Water Line, 1.6 miles Northwest of Park headquarters building ...
Significance: It is a symbol of the transition from agriculture to tourist-related industries in the Estes Park area which eventually culminated in the formation of Rocky Mountain National Park. Constructed and... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Andrews County, Texas. Bringing pipelines to new oil line
Public domain photograph of America during the Great Depression, 1930s, free to use, no copyright restrictions image - Picryl description
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
Santa Ana River Hydroelectric System, Pipeline to Fish Screen, Redland...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
The California Aqueduct, part of a system of canals, tunnels, and pipe...
Title, date, and keywords provided by the photographer. The Department of Water Resources operates and maintains the California Aqueduct, including two pumped-storage hydroelectric plants. Credit line: The Jon ... More
U.S. Naval Base Charleston, Building No. 32 Smokestack, Hobson Avenue,...
Picryl description: Public domain image of a historical building, landmark architecture, world heritage, free to use, no copyright restrictions.
U.S. Naval Base Charleston, Building No. 32 Smokestack, Hobson Avenue,...
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
New York, New Haven & Hartford Railroad, Automatic Signalization Syste...
Significance: This system is one of the few automatic semaphore signal installations still in use on a major railroad in the United States. It was a major element in the first large-scale application of high-v... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Arthur M. Huddell, James River Reserve Fleet, Newport News, Newport Ne...
Significance: The Arthur M. Huddell is significant as an example of the Liberty class, which have been described as the workhorses of World War II. The mass production of the Liberty class was possible because... More
Fitzsimons General Hospital, Underground Fuel Pipelines, North Page St...
Survey number: HABS CO-172-AS Public domain photograph - historical image of Colorado, United States, free to use, no copyright restrictions image - Picryl description
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... More