Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Fuerte El Abanico, Guardhouse, Boulevard Narzagaray, San Juan, San Jua...
Significance: This structure is an excellent example of mid-19th century garrison architecture. It was first used as a guardhouse and later as a carriage shed. The building has been considerably modified, parti... More
Pennsylvania Railroad Company House, 1121-23 Eighth Avenue, Altoona, B...
Written data includes copies of floor plans. Significance: Unlike the Cambria Iron Works in Johnstown, which built hundreds of company houses, the Pennsylvania Railroad Company eschewed the construction of hous... More
Cistern Heads, Boulevard Norzagaray, San Juan, San Juan Municipio, PR
Significance: A good example of eighteenth-century cut stonework and detailing. Survey number: HABS PR-102 National Register of Historic Places NRIS Number: 66000930
Casa Blanca, San Sebastian Street (West End), San Juan, San Juan Munic...
Significance: Casa Blanca was built as a residence and fort for Juan Ponce de Leon and his family, although de Leon died in an expedition to Florida without ever getting to occupy the structure. He was the firs... More
Chisos Basin Store, Castolon, Brewster County, TX
Significance: The Chisos Basin Store, built as a temporary structure in 1941 or early 1942, is constructed of adobe in a vaguely Spanish style, part of a larger complex with this architectural theme. After the... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
La Trinidad Counterguard, San Juan, San Juan Municipio, PR
Significance: It was built between 1765-83 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan, represents in capsule form the solution to tactical problems presented in the ... More
La Trinidad Counterguard, San Juan, San Juan Municipio, PR
Significance: It was built between 1765-83 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan, represents in capsule form the solution to tactical problems presented in the ... More
Quarters No. 210, Boulevard Norezagaray, San Juan, San Juan Municipio,...
Significance: Quarters No. 210, formerly artillery pavilion. Built by the Spanish Corps of Artillery between 1857-59 as Officer's Quarters. Survey number: HABS PR-96 National Register of Historic Places NRIS ... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Fuerte El Abanico, Boulevard Norzagaray, San Juan, San Juan Municipio,...
Significance: It was built 1779-1783 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan. It is a bastion-fort in the outer works of Castillo San Cristobal, a fan-shpaed desi... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Fuerte El Abanico, Guardhouse, Boulevard Narzagaray, San Juan, San Jua...
Significance: This structure is an excellent example of mid-19th century garrison architecture. It was first used as a guardhouse and later as a carriage shed. The building has been considerably modified, parti... More
Castillo de San Felipe del Morro, Lighthouse, Northwest corner of San ...
See also HAER No. PR-23. Survey number: HABS PR-48-A National Register of Historic Places NRIS Number: 66000930
Quarters No. 209, Boulevard Norzagaray, San Juan, San Juan Municipio, ...
Survey number: HABS PR-60 National Register of Historic Places NRIS Number: 66000930
Casa Blanca, San Sebastian Street (West End), San Juan, San Juan Munic...
Significance: Casa Blanca was built as a residence and fort for Juan Ponce de Leon and his family, although de Leon died in an expedition to Florida without ever getting to occupy the structure. He was the firs... More
Casa Blanca, San Sebastian Street (West End), San Juan, San Juan Munic...
Significance: Casa Blanca was built as a residence and fort for Juan Ponce de Leon and his family, although de Leon died in an expedition to Florida without ever getting to occupy the structure. He was the firs... More
Casa Blanca, San Sebastian Street (West End), San Juan, San Juan Munic...
Significance: Casa Blanca was built as a residence and fort for Juan Ponce de Leon and his family, although de Leon died in an expedition to Florida without ever getting to occupy the structure. He was the firs... More
1318 Vermont Avenue, Northwest, Carriage House, Washington, District o...
Survey number: HABS DC-775-A Public domain photograph of architecture design drawing, building plan, diagram, free to use, no copyright restrictions image - Picryl description
Chisos Basin Store, Castolon, Brewster County, TX
Significance: The Chisos Basin Store, built as a temporary structure in 1941 or early 1942, is constructed of adobe in a vaguely Spanish style, part of a larger complex with this architectural theme. After the... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
White Haven, Barn, 7400 Grant Road, Affton, St. Louis County, MO
Survey number: HABS MO-1150-B National Register of Historic Places NRIS Number: 79003205
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Fuerte El Abanico, Boulevard Norzagaray, San Juan, San Juan Municipio,...
Significance: It was built 1779-1783 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan. It is a bastion-fort in the outer works of Castillo San Cristobal, a fan-shpaed desi... More
Fuerte El Abanico, Boulevard Norzagaray, San Juan, San Juan Municipio,...
Significance: It was built 1779-1783 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan. It is a bastion-fort in the outer works of Castillo San Cristobal, a fan-shpaed desi... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Alfred Bentley House, 1509 Fourth Avenue, Altoona, Blair County, PA
Survey number: HABS PA-5845 Building/structure dates: before 1870 Initial Construction
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Fuerte El Abanico, North-East Gate, Boulevard Narzagaray, San Juan, Sa...
Significance: This structure provides access from the north east glacis to El Abanico and La Princesa. It was probably built before the Spanish-American War of 1898 and it typical 19th century military architec... More
Fuerte El Abanico, South Gate, Boulevard Narzagaray, San Juan, San Jua...
Significance: This structure, set into the parapet wall between Fuerte el Abanico and San Carlos bastion of the Castillo de San Cristobal, provides access to El Abanico, La Princesa, and U.S. Army housing. It w... More
La Trinidad Counterguard, San Juan, San Juan Municipio, PR
Significance: It was built between 1765-83 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan, represents in capsule form the solution to tactical problems presented in the ... More
La Trinidad Counterguard, San Juan, San Juan Municipio, PR
Significance: It was built between 1765-83 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan, represents in capsule form the solution to tactical problems presented in the ... More
La Trinidad Counterguard, San Juan, San Juan Municipio, PR
Significance: It was built between 1765-83 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan, represents in capsule form the solution to tactical problems presented in the ... More
Quarters No. 210, Boulevard Norezagaray, San Juan, San Juan Municipio,...
Significance: Quarters No. 210, formerly artillery pavilion. Built by the Spanish Corps of Artillery between 1857-59 as Officer's Quarters. Survey number: HABS PR-96 National Register of Historic Places NRIS ... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More