Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...
Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More
Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...
Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More
Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...
Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More
Blackstone Canal, Blackstone River & Washington Highway (Quinnville), ...
Significance: The Blackstone canal was one of the regions first long distance transportation systems. It was one of the waterways that helped to spawn the industrial development that took place in the Blacksto... More
West Branch Pennsylvania Canal, Lock No. 34 Lock Keeper's House, South...
Significance: The lock keeper's house at Lock No. 34 (see HAER No. PA-188-A) is a historically significant remnant of the Pennsylvania state-built canal system. Part of the West Branch Pennsylvania Canal (see ... More
St. Lucie Canal, St. Lucie Lock No. 1, St. Lucie, Cross State Canal, O...
Significance: Engineered by the U.S. Army Corps of Engineers, Jacksonville Office in 1937, St. Lucie Lock and Dam was designed for preventive measures during hurricanes, floods, and droughts while allowing navi... More
St. Lucie Canal, St. Lucie Lock No. 1, St. Lucie, Cross State Canal, O...
Significance: Engineered by the U.S. Army Corps of Engineers, Jacksonville Office in 1937, St. Lucie Lock and Dam was designed for preventive measures during hurricanes, floods, and droughts while allowing navi... More
St. Lucie Canal, St. Lucie Lock No. 1, St. Lucie, Cross State Canal, O...
Significance: Engineered by the U.S. Army Corps of Engineers, Jacksonville Office in 1937, St. Lucie Lock and Dam was designed for preventive measures during hurricanes, floods, and droughts while allowing navi... More
St. Lucie Canal, St. Lucie Lock No. 1, St. Lucie, Cross State Canal, O...
Significance: Engineered by the U.S. Army Corps of Engineers, Jacksonville Office in 1937, St. Lucie Lock and Dam was designed for preventive measures during hurricanes, floods, and droughts while allowing navi... 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
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
Lock Keeper's House, Seventeenth Street & Constitution Avenue, Northwe...
1994 Charles E. Peterson Prize, Entry Significance: The lockkeeper's house at 17th Street and Constitution Avenue served the lock that connected the Washington branch of the Chesapeake and Ohio Canal to the Was... More
Lock Keeper's House, Seventeenth Street & Constitution Avenue, Northwe...
1994 Charles E. Peterson Prize, Entry Significance: The lockkeeper's house at 17th Street and Constitution Avenue served the lock that connected the Washington branch of the Chesapeake and Ohio Canal to the Was... More
New York State Barge Canal, Lockport Locks, Richmond Avenue, Lockport,...
Locks E34 and E35 were surveyed as part of the 2009 New York State Barge Canal survey; see HAER Nos. NY-515 (Lock E34) and NY-516 (Lock E35). Significance: Locks 67-71 (north flight) comprise a rare 19th-centur... More
New York State Barge Canal, Lockport Locks, Richmond Avenue, Lockport,...
Locks E34 and E35 were surveyed as part of the 2009 New York State Barge Canal survey; see HAER Nos. NY-515 (Lock E34) and NY-516 (Lock E35). Significance: Locks 67-71 (north flight) comprise a rare 19th-centur... More
New York State Barge Canal, Lockport Locks, Richmond Avenue, Lockport,...
Locks E34 and E35 were surveyed as part of the 2009 New York State Barge Canal survey; see HAER Nos. NY-515 (Lock E34) and NY-516 (Lock E35). Significance: Locks 67-71 (north flight) comprise a rare 19th-centur... More
New York State Barge Canal, Lockport Locks, Richmond Avenue, Lockport,...
Locks E34 and E35 were surveyed as part of the 2009 New York State Barge Canal survey; see HAER Nos. NY-515 (Lock E34) and NY-516 (Lock E35). Significance: Locks 67-71 (north flight) comprise a rare 19th-centur... More
New York State Barge Canal, Lockport Locks, Richmond Avenue, Lockport,...
Locks E34 and E35 were surveyed as part of the 2009 New York State Barge Canal survey; see HAER Nos. NY-515 (Lock E34) and NY-516 (Lock E35). Significance: Locks 67-71 (north flight) comprise a rare 19th-centur... More
New York State Barge Canal, Lockport Locks, Richmond Avenue, Lockport,...
Locks E34 and E35 were surveyed as part of the 2009 New York State Barge Canal survey; see HAER Nos. NY-515 (Lock E34) and NY-516 (Lock E35). Significance: Locks 67-71 (north flight) comprise a rare 19th-centur... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Natomas Ditch System, Blue Ravine Segment, Juncture of Blue Ravine & G...
Significance: The Natomas Ditch System's significance comes from its role in the history and development of mining and agricultural endeavors in the Folsom area. The system was determined eligible for inclusio... More
North Canal Dam & Diversion Canals, North Unit Main Canal, North of Ri...
Survey number: HAER OR-61-E Public domain photograph of a canal, water landscape, free to use, no copyright restrictions image - Picryl description
Potowmack Company: Great Falls Canal & Locks, Great Falls, Fairfax Cou...
Significance: The Great Falls Canal was a pioneer effort in the comprehensive development of a river navigation system. Constructed in the years (1786-1802) following the American Revolution, George Washington... More
Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...
For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More
Delaware & Raritan Canal, Locktender's House, North of Hamilton, East ...
Significance: Housed lock tender and family. The lock tender was responsible for operation, inspection, and general maintenance of Lock #13 of the Delaware and Raritan Canal. Survey number: HAER NJ-60-B Buil... More
Delaware & Hudson Canal, Delaware Aqueduct, Spanning Delaware River, L...
Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Delaware & Hudson Canal, Delaware Aqueduct, Spanning Delaware River, L...
Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Delaware & Hudson Canal, Delaware Aqueduct, Spanning Delaware River, L...
Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.
Delaware & Hudson Canal, Delaware Aqueduct, Spanning Delaware River, L...
Public domain scan of a technical diagram, plan, or drawing, free to use, no copyright restrictions - Picryl description.
Delaware & Hudson Canal, Delaware Aqueduct, Spanning Delaware River, L...
Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.
Delaware & Hudson Canal, Delaware Aqueduct, Spanning Delaware River, L...
Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
Na Saĭmenskom kanali︠e︡. Finli︠a︡ndīi︠a︡
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
North Canal Dam & Diversion Canals, North Canal, North Division Street...
Survey number: HAER OR-61-D National Register of Historic Places NRIS Number: 100001303
Lehigh Canal, Freemansburg, Freemansburg, Northampton County, PA
Survey number: HAER PA-176 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Augusta Canal, Augusta, Richmond County, GA
Significance: The Augusta power and navigation canal was projected in order to make Augusta a manufacturing center. By the 1880's, the canal was a success. It supplied water power for eight textile mills, thr... More
Augusta Canal, Augusta, Richmond County, GA
Significance: The Augusta power and navigation canal was projected in order to make Augusta a manufacturing center. By the 1880's, the canal was a success. It supplied water power for eight textile mills, thr... More
Augusta Canal, Augusta, Richmond County, GA
Significance: The Augusta power and navigation canal was projected in order to make Augusta a manufacturing center. By the 1880's, the canal was a success. It supplied water power for eight textile mills, thr... More
Augusta Canal, Augusta, Richmond County, GA
Significance: The Augusta power and navigation canal was projected in order to make Augusta a manufacturing center. By the 1880's, the canal was a success. It supplied water power for eight textile mills, thr... More
The contractors book ... / H. Gerlach ; J.S. Vernam, mechanical engine...
Print shows construction of a railroad and a canal in a wilderness area. Illus. in: The contractors book of working drawings of tools and machines used in constructing canals, rail roads and other works, with b... More
Western Canal, Pawtucket & Merrimack Canals vicinity, Lowell, Middlese...
Significance: The Western Canal was the only power canal in Lowell to be built on two levels, though the Pawtucket Canal also had an upper and a lower level. Construction on two levels meant that the same wate... More
DePere Lock & Dam, Fox River at James Street, De Pere, Brown County, W...
Significance: The De Pere Lock and Dam allows passage from Green Bay in Lake Michigan around rapids and into the Lower Fox River. The complex is the first link in a series of locks and dams that allows passage... More
Northern Canal, Pawtucket & Ford Streets vicinity, Lowell, Middlesex C...
Significance: The Northern Canal was constructed to bring more water into the canal system in order that the demands for power made by increasingly large mills could be met. The Northern Canal supplemented the... More
Irrigation Canals in the Uinta Basin, Wissiup Homestead, Duchesne, Duc...
Survey number: HAER UT-30-E Public domain photograph - historical image of Utah, United States, free to use, no copyright restrictions image - Picryl description
Rapide Croche Lock & Dam, At 22.8 mile marker on Lower Fox River, Wrig...
Significance: The Rapide Croche Lock and Dam Complex allowed water navigation around rapids in the Fox River for boats traveling between Kaukauna and Green Bay. This complex served as an integral part of the Lo... More
Rapide Croche Lock & Dam, At 22.8 mile marker on Lower Fox River, Wrig...
Significance: The Rapide Croche Lock and Dam Complex allowed water navigation around rapids in the Fox River for boats traveling between Kaukauna and Green Bay. This complex served as an integral part of the Lo... More
Grand Canal, North side of Salt River, Tempe, Maricopa County, AZ
Significance: This was the first Salt River Valley canal that was built by a canal company; that improved northside distribution system; that was the site of the most significant low-head hydropower plant of th... More
Grand Canal, North side of Salt River, Tempe, Maricopa County, AZ
Significance: This was the first Salt River Valley canal that was built by a canal company; that improved northside distribution system; that was the site of the most significant low-head hydropower plant of th... More
Lockport Historic District, Bounded by Eighth, Hamilton & Eleventh Str...
Significance: The Village of Lockport was first established in 1836 by the surveyors of the Illinois and Michigan Canal to serve as field headquarters and as a supply point. As the 19th century progressed, Loc... More
Vypusk kanala Imperatora Nikolai︠a︡ I iz magistralʹnago kanala. Golodn...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Pilot Butte Canal, Bend, Deschutes County, OR
Significance: Construction and completion of the canal in 1904 introduced irrigation to Central Oregon and contributed to the settlement, growth and creation of Bend. Although several other private irrigation c... More
Pilot Butte Canal, Bend, Deschutes County, OR
Significance: Construction and completion of the canal in 1904 introduced irrigation to Central Oregon and contributed to the settlement, growth and creation of Bend. Although several other private irrigation c... More
Ousatonic Water Power Company, Dam & Canals, CT Routes 34 & 108, 1 mil...
Significance: The waterworks of the Ousatonic Water Company, when combined with the Shelton mills and related urban development have local and statewide significance as a successful 19th century example of plan... More
Carlsbad Irrigation District, Main Canal, 4 miles North to 12 miles So...
Significance: The Carlsbad Irrigation District is nationally significant as an excellent surviving representation of a large turn-of-the-century reclamation system. The District includes significant engineerin... More
Carlsbad Irrigation District, Main Canal, 4 miles North to 12 miles So...
Significance: The Carlsbad Irrigation District is nationally significant as an excellent surviving representation of a large turn-of-the-century reclamation system. The District includes significant engineerin... More
Down the Saint Mary's River, Sault Ste. Marie, Mich.
Public domain image of a historic view of Boston Harbor, Massachusetts, free to use, no copyright restrictions - Picryl description
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Morris Canal, Phillipsburg, Warren County, NJ
Significance: The Morris Canal is one of the few amphibious canals to operate in the United States. Stretching from Phillipsburg on the Delaware River to Jersey City on the Hudson River, the Morris Canal opene... More
Colorado River Aqueduct, From Colorado River to Lake Mathews, Parker D...
Significance: The Colorado River Aqueduct pumps water from the Colorado River through, over, and across mountains and desert in a 242-mile-long march to the coastal plain of Southern California. When completed... More
Colorado River Aqueduct, From Colorado River to Lake Mathews, Parker D...
Significance: The Colorado River Aqueduct pumps water from the Colorado River through, over, and across mountains and desert in a 242-mile-long march to the coastal plain of Southern California. When completed... More
Colorado River Aqueduct, From Colorado River to Lake Mathews, Parker D...
Significance: The Colorado River Aqueduct pumps water from the Colorado River through, over, and across mountains and desert in a 242-mile-long march to the coastal plain of Southern California. When completed... More
Colorado River Aqueduct, From Colorado River to Lake Mathews, Parker D...
Significance: The Colorado River Aqueduct pumps water from the Colorado River through, over, and across mountains and desert in a 242-mile-long march to the coastal plain of Southern California. When completed... More
New York Barge Canal, Gowanus Bay Terminal Pier, East of bulkhead supp...
Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
New York Barge Canal, Gowanus Bay Terminal Pier, East of bulkhead supp...
Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description
California Citrus Heritage Recording Project, Riverside, Riverside Cou...
Public domain photograph of rural California, dust bowl refugees, 1930s-1940s, no copyright restrictions image - Picryl description
Erie Canal (Enlarged), Schoharie Creek Aqueduct, Spanning Schoharie Cr...
These records were prepared as part of the Mohawk-Hudson Area Survey, a pilot study for the Historic American Engineering Record, which was established in 1969 under the aegis of the Historic American Buildings... More
Erie Canal (Enlarged), Schoharie Creek Aqueduct, Spanning Schoharie Cr...
These records were prepared as part of the Mohawk-Hudson Area Survey, a pilot study for the Historic American Engineering Record, which was established in 1969 under the aegis of the Historic American Buildings... More
Erie Canal (Enlarged), Schoharie Creek Aqueduct, Spanning Schoharie Cr...
These records were prepared as part of the Mohawk-Hudson Area Survey, a pilot study for the Historic American Engineering Record, which was established in 1969 under the aegis of the Historic American Buildings... More
Erie Canal (Enlarged), Schoharie Creek Aqueduct, Spanning Schoharie Cr...
These records were prepared as part of the Mohawk-Hudson Area Survey, a pilot study for the Historic American Engineering Record, which was established in 1969 under the aegis of the Historic American Buildings... More
Tempe Canal, South Side Salt River in Tempe, Mesa & Phoenix, Tempe, Ma...
Significance: The oldest canal in continuous use in the Salt River Valley; site of early hydropower projects; the last independent canal company to join the Salt River Project. Survey number: HAER AZ-16 Build... More
Tempe Canal, South Side Salt River in Tempe, Mesa & Phoenix, Tempe, Ma...
Significance: The oldest canal in continuous use in the Salt River Valley; site of early hydropower projects; the last independent canal company to join the Salt River Project. Survey number: HAER AZ-16 Build... More
Tempe Canal, South Side Salt River in Tempe, Mesa & Phoenix, Tempe, Ma...
Significance: The oldest canal in continuous use in the Salt River Valley; site of early hydropower projects; the last independent canal company to join the Salt River Project. Survey number: HAER AZ-16 Build... More
The Locks, Sault Ste. Marie, mammoth plate negative
Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.
Shannock Village, Main Street, North Shannock Road, & West Shannock Ro...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...
Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More
Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...
Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More
Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...
Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More
Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...
Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More
Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...
Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More
Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...
Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More
Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...
Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More
Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...
Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More
Map of Georgia & Alabama exhibiting the post offices, post roads, cana...
Detailed map showing relief by hachures, drainage, township and county boundaries, cities and towns, canals, roads, and railroads. Scale ca. 1:650,000. From his The American Atlas (London, J. Arrowsmith, 1839) ... More
Miami & Erie Canal Locks, Loramie Portage site vicinity, Lockington, S...
Significance: The locks are the highest point on the Miami and Erie Canal, commenced in 1825 from Cincinnati to Dayton and completed in 1845 to Toledo. Survey number: HABS OH-411 Building/structure dates: ca.... More
![[Chalet of the Viceroy] - Public domain albumen print photogrpaph](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTkvMDkvMjMvY2hhbGV0LW9mLXRoZS12aWNlcm95LTM3M2RiZi0xMDI0LmpwZw%3D%3D/40/31/webp "[Chalet of the Viceroy] - Public domain albumen print photogrpaph")
[Chalet of the Viceroy] - Public domain albumen print photogrpaph
Chalet of the viceroy overlooking the Suez Canal. No. 1777. The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixtu... More
Convent and quays on the Vilaine, Rennes, (p. 268.)
Published with: Jephson, J. M. Narrative of a walking tour in Brittany by John Mounteney Jephson, F.S.A. ; accompanied by notes of a photographic expedition by Lovell Reeve, F.L.S., no. 78.
Dutch Gap Canal, James River, Virginia / negative by J. Reekie, positi...
Photograph showing the canal which was built to join together two portions of the James River. Illus. in: Gardner's photographic sketch book of the war / Alexander Gardner. Washington, D.C. : Philp & Solomons,... More
Canal De la Viga - Public domain image. Dry plate negative.
Public domain photograph of a canal, water landscape, free to use, no copyright restrictions image - Picryl description