Junction of the Allegheny and Monongahela Rivers to form the Ohio. Pittsburgh, Pennsylvania. Sourced from the Library of… https://www.rawpixel.com/image/12272485/photo-image-sky-public-domain-archFree Image from public domain licenseTug pulling barges through Lock Eleven. Erie Canal, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288377/photo-image-person-road-public-domainFree Image from public domain licenseBridge over Little Missouri River, on U.S. Highway Number 10. Medora, North Dakota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273873/photo-image-cloud-sky-roadFree Image from public domain licenseCincinnati (vicinity), Ohio. The Cincinnati bridge as seen from the towboat Ernest T. Weir going down the Ohio River.… https://www.rawpixel.com/image/12295061/photo-image-person-sky-public-domainFree Image from public domain licenseChillicothe, Illinois. Crossing the Illinois River along the Atchison, Topeka and Santa Fe Railroad, between Chicago and… https://www.rawpixel.com/image/12290080/photo-image-sky-road-public-domainFree Image from public domain license[Untitled photo, possibly related to: Middletown, Connecticut, with a bridge across the Connecticut River]. Sourced from the… https://www.rawpixel.com/image/12279094/photo-image-sky-public-domain-archFree Image from public domain licenseAk-sar-ben toll bridge between Iowa and Nebraska. Omaha. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269484/photo-image-person-sky-roadFree Image from public domain license[Untitled photo, possibly related to: View of East Mauch Chunk from Upper Mauch Chunk with Lehigh River in foreground. Mauch… https://www.rawpixel.com/image/12276545/photo-image-plant-sky-treeFree Image from public domain licenseGreat Northern grain elevator in Superior, Wisconsin. City of Duluth, Minnesota in background. Sourced from the Library of… https://www.rawpixel.com/image/12286168/photo-image-background-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Freight train operations on the Chicago and Northwestern Railroad between Chicago and… https://www.rawpixel.com/image/12291204/photo-image-sky-tree-crossesFree Image from public domain license[Untitled photo, possibly related to: Fort Sumner, New Mexico. Train about to cross Pecos River along the Atchison, Topeka… https://www.rawpixel.com/image/12293372/photo-image-sky-cross-roadFree Image from public domain licenseLog booms in Willamette River. Portland, Oregon. Sourced from the Library of Congress. https://www.rawpixel.com/image/12266995/photo-image-cloud-booms-skyFree Image from public domain license[Untitled photo, possibly related to: Oswego, New York. United Nations heroes marching behind the boy scouts carrying flags… https://www.rawpixel.com/image/12294985/photo-image-person-sky-public-domainFree Image from public domain licenseTruck which carries bulk wheat in entrance to private elevator. Touchet, Walla Walla County, Washington by Russell Lee https://www.rawpixel.com/image/12151415/image-person-art-vintageFree Image from public domain licenseCincinnati (vicinity), Ohio. Deckhands releasing a barge from the tow of the towboat Ernest T. Weir going down the Ohio… https://www.rawpixel.com/image/12296194/photo-image-person-sky-technologyFree Image from public domain license[Untitled photo, possibly related to: Oswego, New York. United Nations heroes marching behind the boy scouts carrying flags… https://www.rawpixel.com/image/12294975/photo-image-person-sky-public-domainFree Image from public domain licenseDetail of bridge washed out by recent flood of Sacramento River in Tehama County, California by Russell Lee https://www.rawpixel.com/image/12149379/image-plant-person-artFree Image from public domain licensePart of coal mine tipple with workers' homes in background. Pursglove Cleaning Plant No. 2, West Virginia. Sourced from the… https://www.rawpixel.com/image/12249066/photo-image-background-plant-personFree Image from public domain license[Untitled photo, possibly related to: Toll bridge over Mississippi River, Saint Louis, Missouri]. Sourced from the Library… https://www.rawpixel.com/image/12253561/photo-image-sky-public-domain-basketballFree Image from public domain licenseRustic bridges built by Resettlement Administration workers add to the beauty of stream and forest in the coast recreation… https://www.rawpixel.com/image/12268604/photo-image-plant-person-forestFree Image from public domain license[Untitled photo, possibly related to: Lock Eleven. Erie Canal, New York]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288325/photo-image-person-sky-roadFree Image from public domain license[Untitled photo, possibly related to: Bridge across Wabash River. Vincennes, Indiana]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272499/photo-image-plant-sky-treeFree Image from public domain licenseQueens, New York, New York. "Dezendorf's delightful dwellings. Sourced from the Library of Congress. https://www.rawpixel.com/image/12267305/photo-image-sky-public-domain-landscapeFree Image from public domain license[Untitled photo, possibly related to: Oswego, New York. United Nations heroes marching behind the boy scouts carrying flags… https://www.rawpixel.com/image/12295279/photo-image-people-sky-roadFree Image from public domain licenseBridge and houses in [Phillipsburg, New Jersey; seen from] Easton, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12266386/photo-image-plant-sky-treeFree Image from public domain licenseCleveland, Ohio. Unloading iron ore from a lake freighter by means of Hewlett [i.e., Hulett] unloaders at the Pennsylvania… https://www.rawpixel.com/image/12293890/photo-image-person-sky-public-domainFree Image from public domain licenseCincinnati (vicinity), Ohio. A bridge over the Ohio River, as seen from the towboat Ernest T. Weir. Sourced from the Library… https://www.rawpixel.com/image/12296187/photo-image-sky-road-animalFree Image from public domain licenseAn old mill and bridge. Woonsocket, Rhode Island. Sourced from the Library of Congress. https://www.rawpixel.com/image/12279512/photo-image-sky-smoke-public-domainFree Image from public domain licenseView of East Mauch Chunk from Upper Mauch Chunk, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12274941/photo-image-plant-sky-treeFree Image from public domain licenseBarge in Lock Eleven. Erie Canal, near Amsterdam, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288617/photo-image-person-sky-lightFree Image from public domain licenseBridge Lake Nature Beauty Reflection https://www.rawpixel.com/image/91414/free-photo-image-bridge-beauty-cloudView licenseBridge Lake Nature Beauty Reflection https://www.rawpixel.com/image/91394/free-photo-image-beauty-bridge-cloudView licenseStructure of covered bridge. Wallingford, Vermont. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269379/photo-image-wood-public-domain-archFree Image from public domain licenseMechanism for pulling lock gate open or closing it. Sourced from the Library of Congress. https://www.rawpixel.com/image/12294426/photo-image-road-public-domain-archFree Image from public domain license[Untitled photo, possibly related to: Bellows Falls, Vermont, and on the far side of the river, North Walpole, New… https://www.rawpixel.com/image/12277323/photo-image-plant-sky-treeFree Image from public domain license[Untitled photo, possibly related to: View of White River Junction, Vermont]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12277367/photo-image-plant-sky-treeFree Image from public domain license[Untitled photo, possibly related to: New York, New York. Second Avenue elevated railway at 14th Street, in process of… https://www.rawpixel.com/image/12288951/photo-image-person-horse-skyFree Image from public domain licensePittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12267154/photo-image-sky-public-domain-natureFree Image from public domain licenseGallipolis, Ohio. Roller dam showing how river barrier is raised or lowered. Sourced from the Library of Congress. https://www.rawpixel.com/image/12294725/photo-image-public-domain-arch-waterFree Image from public domain licenseThe Connecticut River at Bellows Falls, Vermont. Sourced from the Library of Congress. https://www.rawpixel.com/image/12277528/photo-image-cloud-person-skyFree Image from public domain licenseBellows Falls, Vermont, and on the far side of the river, North Walpole, New Hampshire. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278445/photo-image-plant-person-skyFree Image from public domain licenseGlenfinnan Viaduct railway in Inverness-shire, Scotland https://www.rawpixel.com/image/1077830/glenfinnan-viaduct-scotlandView license[Untitled photo, possibly related to: Bingham Canyon, Utah. Huge dipper of a shovel loading ore into cars at a mine of the… https://www.rawpixel.com/image/12295762/photo-image-person-sky-public-domainFree Image from public domain licenseGallipolis, Ohio. Relationship of roller dam to lock. Sourced from the Library of Congress. https://www.rawpixel.com/image/12294724/photo-image-sky-public-domain-archFree Image from public domain license[Untitled photo, possibly related to: New York, New York. The Bowery about 10 p.m.]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12289920/photo-image-person-light-roadFree Image from public domain licenseLas Vegas, Nevada. Some completed and also some unfinished buildings of the Basic Magnesium Incorporated plant. The building… https://www.rawpixel.com/image/12297653/photo-image-plant-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Loading dock of flour mill. Port of Houston, Texas] by Russell Lee https://www.rawpixel.com/image/12174702/image-art-sky-vintageFree Image from public domain license[Untitled photo, possibly related to: Lock Eleven on the Erie Canal at Amsterdam, New York]. Sourced from the Library of… https://www.rawpixel.com/image/12288329/photo-image-person-sky-public-domainFree Image from public domain licenseOne of the employees' entrances on Canal Street of the Amoskeag mills. Manchester, New Hampshire. Sourced from the Library… https://www.rawpixel.com/image/12269058/photo-image-road-public-domain-factoryFree Image from public domain licensePoint Pleasant (vicinity), West Virginia. Bridges over the Kanawha River. Sourced from the Library of Congress. https://www.rawpixel.com/image/12293639/photo-image-plant-sky-treeFree Image from public domain licenseFreight cars in flour mill district. Minneapolis, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12282567/photo-image-cloud-person-skyFree Image from public domain license[Untitled photo, possibly related to: Construction of new bridge, Tygart Valley Homesteads, West Virginia]. Sourced from the… https://www.rawpixel.com/image/12247895/photo-image-person-sky-treeFree Image from public domain licenseA dredge working on the Ohio river at Rochester, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278809/photo-image-sky-smoke-public-domainFree Image from public domain licenseRailroad trestle. Ontonagon County, Michigan. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286510/photo-image-plant-sky-public-domainFree Image from public domain licenseLooking north. Monongahela River, Pittsburgh, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273725/photo-image-sky-public-domain-natureFree Image from public domain licenseAmoskeag mills looking north from Bridge Street on Canal Street side. Manchester, New Hampshire. Sourced from the Library of… https://www.rawpixel.com/image/12269295/photo-image-plant-sky-public-domainFree Image from public domain licenseThe dock at Little Creek, Virginia, the "Gateway to the South." The Norfolk end of the Norfolk-Cape Charles ferry. Sourced… https://www.rawpixel.com/image/12263286/photo-image-person-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: The remains of an old cotton mill at Scull Shoals. Greene County, Georgia]. Sourced… https://www.rawpixel.com/image/12279334/photo-image-plant-forest-treeFree Image from public domain licenseOswego, New York. Factories on the Oswego River. Sourced from the Library of Congress. https://www.rawpixel.com/image/12296098/photo-image-plant-sky-treeFree Image from public domain license[Untitled photo, possibly related to: Ship going through drawbridge entering port of Corpus Christi, Texas] by Russell Lee https://www.rawpixel.com/image/12166641/image-person-art-skyFree Image from public domain licenseHouses of Bethlehem, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12266366/photo-image-person-road-public-domainFree Image from public domain licenseFlagstaff, Arizona. A street scene on the Atchison, Topeka, and Santa Fe Railroad between Winslow and Seligman, Arizona.… https://www.rawpixel.com/image/12292638/photo-image-person-sky-roadFree Image from public domain license[Untitled photo, possibly related to: Trucks at Union Stockyards. Chicago, Illinois]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12287081/photo-image-sky-light-public-domainFree Image from public domain licenseDam at Trap Pond. Delaware land use project. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273875/photo-image-plant-sky-treeFree Image from public domain licenseEntrance to Union Stockyards. Omaha, Nebraska. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269479/photo-image-road-public-domain-factoryFree Image from public domain license[Untitled photo, possibly related to: Great Northern grain elevator in Superior, Wisconsin. City of Duluth, Minnesota in… https://www.rawpixel.com/image/12285160/photo-image-background-sky-public-domainFree Image from public domain licenseBridge Lake Nature Beauty Reflection https://www.rawpixel.com/image/91509/free-photo-image-beauty-bridge-cloudView licenseLock Eleven. Erie Canal, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288464/photo-image-person-public-domain-archFree Image from public domain license[Untitled photo, possibly related to: Cincinnati (vicinity), Ohio. A bridge over the Ohio River, as seen from the towboat… https://www.rawpixel.com/image/12295269/photo-image-person-sky-public-domainFree Image from public domain licenseOswego, New York. United Nations heroes marching behind the boy scouts carrying flags in the United Nations week parade.… https://www.rawpixel.com/image/12294905/photo-image-person-sky-balloonFree Image from public domain licenseOswego, New York. Factories on the Oswego River. Sourced from the Library of Congress. https://www.rawpixel.com/image/12296112/photo-image-plant-sky-treeFree Image from public domain license[Untitled photo, possibly related to: The remains of an old cotton mill at Scull Shoals. Greene County, Georgia]. Sourced… https://www.rawpixel.com/image/12279209/photo-image-plant-forest-treeFree Image from public domain license[Untitled photo, possibly related to: Highway on the New Hampshire side of the Connecticut River leading to Brattleboro… https://www.rawpixel.com/image/12277342/photo-image-cloud-plant-skyFree Image from public domain license[Untitled photo, possibly related to: The dock at Little Creek, Virginia, the "Gateway to the South." The Norfolk end of the… https://www.rawpixel.com/image/12263325/photo-image-person-public-domain-archFree Image from public domain licenseHousing under Wisconsin Avenue viaduct. Milwaukee, Wisconsin. Sourced from the Library of Congress. https://www.rawpixel.com/image/12267431/photo-image-tree-road-public-domainFree Image from public domain licenseLas Vegas, Nevada. Workmen, trucks, railroad boxcars, tool sheds, and many buildings during an early construction period of… https://www.rawpixel.com/image/12297885/photo-image-plant-person-skyFree Image from public domain license[Untitled photo, possibly related to: Coal mine tipple, Caples, West Virginia]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12248189/photo-image-tree-road-mountainFree Image from public domain licenseBridge across Wabash River. Vincennes, Indiana. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273789/photo-image-person-sky-public-domainFree Image from public domain licenseView of city of Pittsburgh, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272448/photo-image-sky-public-domain-natureFree Image from public domain license