gravel

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A dog paw made out of rocks on a red surface. Soles of the feet footprint gravel.

A dog paw made out of rocks on a red surface. Soles of the feet footpr...

Visual patterns: Rocks are a great way to use rocks / Rocks made from a rabbit's paw - public domain stock photo.

A local Iraqi civilian filters out the unwanted rocks from the clean gravel that will be later used to make concrete for the new city Police Department building in Anah, Iraq

A local Iraqi civilian filters out the unwanted rocks from the clean g...

The original finding aid described this photograph as: Base: Anah State: Al Anbar Country: Iraq (IRQ) Scene Camera Operator: LCPL Kevin C. Quihuis, Jr, USMC Release Status: Released to Public Combined Mili... More

Gravel, Jacques de - Public domain portrait engraving

Gravel, Jacques de - Public domain portrait engraving

Public domain photograph of portrait art print, 18th century, free to use, no copyright restrictions image - Picryl description

Gravel, Jacques de - Public domain portrait engraving

Gravel, Jacques de - Public domain portrait engraving

Public domain photo of portrait art print, 17th century, free to use, no copyright restrictions image - Picryl description.

Portret van Robertus de Gravel - Public domain portrait engraving

Portret van Robertus de Gravel - Public domain portrait engraving

Public domain scan of portrait art print, free to use, no copyright restrictions image - Picryl description

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Public domain photo of portrait art print, 17th century, free to use, no copyright restrictions image - Picryl description.

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Public domain scan of portrait art print, free to use, no copyright restrictions image - Picryl description

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Stecher: Somer, Mathias van Public domain photograph of 17th century Dutch drawing, free to use, no copyright restrictions image - Picryl description

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Zeichner: Somer, Mathias van Stecher: Somer, Mathias van Datierung: 1667 / 1672

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Stecher: Somer, Mathias van Datierung: 1666 / 1672 Public domain photograph of 17th century Dutch drawing, free to use, no copyright restrictions image - Picryl description

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Public domain scan of portrait print, engraving, free to use, no copyright restrictions image - Picryl description

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Stecher: Somer, Mathias van Datierung: 1666 / 1672 Public domain photograph of 17th century Dutch drawing, free to use, no copyright restrictions image - Picryl description

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Stecher: Somer, Mathias van Datierung: 1666 / 1672 Public domain photograph of 17th century Dutch drawing, free to use, no copyright restrictions image - Picryl description

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Public domain photograph of portrait print, engraving, free to use, no copyright restrictions image - Picryl description

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

Zeichner: Somer, Mathias van Stecher: Somer, Mathias van Datierung: 1667 / 1672

Gravel, Robert de - Public domain portrait engraving

Gravel, Robert de - Public domain portrait engraving

1651 / 1700 Public domain scan of 17th-century male portrait, engraving, free to use, no copyright restrictions image - Picryl description

Buller Gorge, The Cave, New Zealand / Burton Brothers Studio

Buller Gorge, The Cave, New Zealand / Burton Brothers Studio

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

Wairakei, New Zealand / Burton Brothers Studio

Wairakei, New Zealand / Burton Brothers Studio

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

Buller Gorge - the cave - Muir & Moodie, New Zealand

Buller Gorge - the cave - Muir & Moodie, New Zealand

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

Wairakei, New Zealand / Burton Brothers Studio

Wairakei, New Zealand / Burton Brothers Studio

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

A geyser, Rotomahana, New Zealand / Burton Brothers Studio

A geyser, Rotomahana, New Zealand / Burton Brothers Studio

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

Buller Gorge - the cave - Muir & Moodie, New Zealand

Buller Gorge - the cave - Muir & Moodie, New Zealand

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

Wairakei, New Zealand / Burton Brothers Studio

Wairakei, New Zealand / Burton Brothers Studio

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

Hydraulic Mining--The Lower Lead of the Blue Gravel Company, Smartsville, Yuba County

Hydraulic Mining--The Lower Lead of the Blue Gravel Company, Smartsvil...

The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 805. LOT subdivision subject: Hydraulic Mining. This record contains unverified old data from caption card.

Hydraulic Mining - hauling Sluice Blocks, for the Blue Gravel Claim, Smartsville, Nevada County

Hydraulic Mining - hauling Sluice Blocks, for the Blue Gravel Claim, S...

The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites and salt, which creates a glossy surface to h... More

Gruvras 22 oktober 1966 Sverige. Public domain image.

Gruvras 22 oktober 1966 Sverige. Public domain image.

Gruvras 22 oktober 1966 Public domain photograph, 1900s Sweden, free to use, no copyright restrictions image - Picryl description.

Ånglok och gruståg vid Björnhyttans grusgrop.

Ånglok och gruståg vid Björnhyttans grusgrop.

Ånglok och gruståg vid Björnhyttans grusgrop. Public domain image of railroad, railway, 19th-century Sweden, historical photograph, free to use, no copyright restrictions image - Picryl description

Reparation av banvall efter ett ras.

Reparation av banvall efter ett ras.

Reparation av banvall efter ett ras.

Sketch of North Bloomfield Mine showing Existing and Proposed Works, entered as a reduced copy of respondent's exhibit 1, in the matter of Equity Case 7865, United States v. North Bloomfield Gravel Mining Company.

Sketch of North Bloomfield Mine showing Existing and Proposed Works, e...

United States vs. North Bloomfield Mining Company

Sketch of North Bloomfield Mine as it appeared Feb. 1891, entered as respondent's exhibit 41, in the matter of Equity Case 7865, United States v. North Bloomfield Gravel Mining Company.

Sketch of North Bloomfield Mine as it appeared Feb. 1891, entered as r...

United States vs. North Bloomfield Mining Company

Sinai. Gravel terraces in Wady Feiran. / American Colony, Jerusalem.

Sinai. Gravel terraces in Wady Feiran. / American Colony, Jerusalem.

Public domain image of Egyptian art, free to use, no copyright restrictions photo - Picryl description

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Clinton River and Mt. Te Anau, New Zealand

Clinton River and Mt. Te Anau, New Zealand

Public domain photo of vintage New Zealand postcard, 19th century, free to use, no copyright restrictions image - Picryl description.

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Labor Secretary receives silicosis report. Washington D.C. The second National Silicosis Conference in a report to Secretary of Labor Perkins today, recommended enactment of X state and federal laws for protection of 1,000,000 Miners subjected to dangers of silica dust. The conference also reported it was unanimous in recommending compulsory insurance coverage for silicosis in the compensation acts of all states. In the photograph, left to right: (seated) Verne A. Zimmer, Director of Division of Standards; Secretary Perkins; and Dr. R.R. Sayers, U.S. Public Health Service, in charge of Division of Industrial Hygiene. Standing left to right: W.P. Ahearn, Executive Secretary, National Sand and Gravel Association; L. Metcalfe Walling, Commissioner of Labor of Rhode Island; and Warren A. Cook, Chief Engineer, Department of Health Hartford Conn.

Labor Secretary receives silicosis report. Washington D.C. The second ...

A group of men sitting around a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Rock and Gravel - All States, National Forest Service photograph.

Rock and Gravel - All States, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Svanbomska villan på Herrhagen. Gaveln på KMV:s kontor skymtar till vänster. Bilden tagen runt 1905.

Svanbomska villan på Herrhagen. Gaveln på KMV:s kontor skymtar till vä...

Svanbomska villan på Herrhagen. Gaveln på KMV:s kontor skymtar till vänster. Bilden tagen runt 1905.

Skioptikonbild med motiv av arbete med  lastade pråmar på kanal i Hamburg.Bilden har förvarats i kartong märkt: Resan 1906. Hamburg 9.

Skioptikonbild med motiv av arbete med lastade pråmar på kanal i Hamb...

Skioptikonbild med motiv av arbete med lastade pråmar på kanal i Hamburg.Bilden har förvarats i kartong märkt: Resan 1906. Hamburg 9.

Flooding ^ Severe Storm - Ashland City, Tenn. , May 9, 2010 -- The severe flooding in Ashland City picked up  slabs of the road and moved it off of the road bed causing heavy road damage, leaving gravel and dirt behind for traffic to drive over.  FEMA is responding to severe storms and flooding that damaged and destroyed thousands of homes across Tennessee.  David Fine/FEMA

Flooding ^ Severe Storm - Ashland City, Tenn. , May 9, 2010 -- The sev...

The original database describes this as: Title: Road damage in Ashland City, TN Production Date: 05/09/2010 Caption: Ashland City, Tenn. , May 9, 2010 -- The severe flooding in Ashland City picked up slabs ... More

The Mangatainoka River, Pahiatua, New Zealand

The Mangatainoka River, Pahiatua, New Zealand

Picryl description: Public domain photo of vintage New Zealand postcard, free to use, no copyright restrictions image.

M.M. Co.'s gravel train - Public domain portrait print

M.M. Co.'s gravel train - Public domain portrait print

J185455 U.S. Copyright Office Copyright deposit; E. R. Hensley; September 11, 1913. Photographer's address: Manchester, Iowa.

River Bar Sky - National Parks Gallery

River Bar Sky - National Parks Gallery

Many of Denali's rivers are bordered by wide gravel bars. These aren't signs of a flood or high-water mark, however. The gravel is the detritus brought down from the mountains in small amounts. Pebbles and ston... More

Toe Drain (Gradation of Gravel) - Bureau of Indian Affairs

Toe Drain (Gradation of Gravel) - Bureau of Indian Affairs

Public domain photograph related to native Americans, Reservations, free to use, no copyright restrictions image - Picryl description

Toe Drain (Gravel) - Bureau of Indian Affairs

Toe Drain (Gravel) - Bureau of Indian Affairs

Public domain photograph related to native Americans, Reservations, free to use, no copyright restrictions image - Picryl description

Gravel Beach - Bureau of Indian Affairs

Gravel Beach - Bureau of Indian Affairs

Public domain photograph related to native Americans, Reservations, free to use, no copyright restrictions image - Picryl description

Kyle Dam (Screening Gravel) - Bureau of Indian Affairs

Kyle Dam (Screening Gravel) - Bureau of Indian Affairs

Public domain photograph related to native Americans, Reservations, free to use, no copyright restrictions image - Picryl description

Bear Creek Dam (Putting Gravel in Ditch) - Bureau of Indian Affairs

Bear Creek Dam (Putting Gravel in Ditch) - Bureau of Indian Affairs

Public domain photograph related to native Americans, Reservations, free to use, no copyright restrictions image - Picryl description

White Clay Dam (Loading Gravel) - Bureau of Indian Affairs

White Clay Dam (Loading Gravel) - Bureau of Indian Affairs

Public domain photograph related to native Americans, Bureau of Indian Affairs, Reservations, free to use, no copyright restrictions image - Picryl description Pine Ridge Agency: Miscellaneous Photographs

Machines. Mixing gravel and tar I

Machines. Mixing gravel and tar I

Public domain photograph of 1940s-1950s America, free to use, no copyright restrictions image - Picryl description

Truck loading with cement. View from behind of Massaponax Sand & Gravel Corp. trucks

Truck loading with cement. View from behind of Massaponax Sand & Grave...

Public domain photograph of midcentury American architecture, free to use, no copyright restrictions image - Picryl description

Smidesjärn och gran vid Hjorted kyrka.

Smidesjärn och gran vid Hjorted kyrka.

Smidesjärn och gran vid Hjorted kyrka. Public domain photograph of church in Sweden, free to use, no copyright restrictions image - Picryl description

Machines. Mixing gravel and tar II

Machines. Mixing gravel and tar II

Public domain photograph of 1940s-1950s America, free to use, no copyright restrictions image - Picryl description

Working the gravel pit at Jersey Homesteads, Hightstown, New Jersey

Working the gravel pit at Jersey Homesteads, Hightstown, New Jersey

Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.

Gravel pit used for road surfacing on Resettlement Administration project.  Oneida County, Idaho

Gravel pit used for road surfacing on Resettlement Administration proj...

Public domain photograph - historical image of Nevada, United States, free to use, no copyright restrictions image - Picryl description

Gravel pit used as source for road surfacing on Resettlement Administration project. Oneida County, Idaho

Gravel pit used as source for road surfacing on Resettlement Administr...

Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.

View of Completed Gravel Fill - U.S. National Archives Public Domain photograph

View of Completed Gravel Fill - U.S. National Archives Public Domain p...

This photograph depicts a general view of the gravel fill at Pleasant Point Dam. Passamaquoddy Tidal Power Project Photographs

[Mount Carmel,] Pennsylvania. Sand and gravel yards on the outskirts of the town

[Mount Carmel,] Pennsylvania. Sand and gravel yards on the outskirts o...

Picryl description: Public domain image of a quarry, excavation or mining site, free to use, no copyright restrictions.

Gravel pit, Lincoln, Nebraska. Great Depression public domain photograph.

Gravel pit, Lincoln, Nebraska. Great Depression public domain photogra...

Public domain image related to President Abraham Lincoln, gelatin silver print, free to use, no copyright restrictions image - Picryl description

Elever från Svenska Seglarskolan utomhus på en grusplan.

Elever från Svenska Seglarskolan utomhus på en grusplan.

Elever från Svenska Seglarskolan utomhus på en grusplan. Public domain photograph of 19th-century group portrait, free to use, no copyright restrictions image - Picryl description

An old photo of a truck loaded with grapes, Colorado. Farm Security Administration photograph

An old photo of a truck loaded with grapes, Colorado. Farm Security Ad...

Picryl description: Public domain image of a miner, coal mine, free to use, no copyright restrictions.

Gravel road near Hyden, Kentucky

Gravel road near Hyden, Kentucky

Public domain photograph of United States agriculture in the 1930s, country, farmer, farm, great depression, migration, dust bowl refugees, free to use, no copyright restrictions image - Picryl description

Unloading gravel to be used in mine building construction, Ouray County, Colorado

Unloading gravel to be used in mine building construction, Ouray Count...

Public domain photograph of excavation, bulldozer, land management, free to use, no copyright restrictions image - Picryl description

Road workers pouring gravel into concrete mixer. Menard County, Texas

Road workers pouring gravel into concrete mixer. Menard County, Texas

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

A black and white photo of a dump truck, Colorado. Farm Security Administration photograph

A black and white photo of a dump truck, Colorado. Farm Security Admin...

Picryl description: Public domain photograph of a car, 1930s, free to use, no copyright restrictions.

A man standing next to a truck filled with grapes, Great Depression. FSA/OWI Photograph

A man standing next to a truck filled with grapes, Great Depression. F...

Picryl description: Public domain image of industrial or agricultural worker, 1930s, 20th-century, free to use, no copyright restrictions. show less

Gravel pit camp near Camp Beauregard, Alexandria, Louisiana. Construction workers living on government property

Gravel pit camp near Camp Beauregard, Alexandria, Louisiana. Construct...

Public domain photograph of the 1930s-1940s World War Two, armed forces, military production, no copyright restrictions image - Picryl description

Gravel pit camp near Camp Beauregard, Alexandria, Louisiana. Construction workers living on government property

Gravel pit camp near Camp Beauregard, Alexandria, Louisiana. Construct...

Public domain photograph of Louisiana in 1930s, free to use, no copyright restrictions image - Picryl description

Gravel road running through the hilly farm land of Ross County, Ohio

Gravel road running through the hilly farm land of Ross County, Ohio

Public domain photograph of United States agriculture in the 1930s, country, farmer, farm, great depression, migration, dust bowl refugees, free to use, no copyright restrictions image - Picryl description

Construction workers' shack on government property off new highway to flying field which is also in the making. Living quarters of gravel pit workers and truck drivers. Ten to twelve men are housed and fed in this shack, which was built by the group who occupy same. Name of shack is Texas Long Horns. Entire gang is from Texas. Mr. M.A. Pevot of Mauriceville near Beaumont took most of the initiative as well as doing the cooking. He owns a small grocery store in his home town which is cared for in his absence by his wife, mother and father. Three of the trucks, which are very old, belong to him, and he rents them to his associates. Most of the trucks on this job were owned or rented by the worker. Shack is located in section known as Pleasant Grove, near Camp Beauregard. Alexandria, Louisiana

Construction workers' shack on government property off new highway to ...

Public domain photograph of Louisiana in 1930s, free to use, no copyright restrictions image - Picryl description

Gravel road down mountain near Hyden, Kentucky

Gravel road down mountain near Hyden, Kentucky

Public domain photograph of United States agriculture in the 1930s, country, farmer, farm, great depression, migration, dust bowl refugees, free to use, no copyright restrictions image - Picryl description

Men Working near a Gravel Pile - Pine Ridge Indian Reservation, South Dakota

Men Working near a Gravel Pile - Pine Ridge Indian Reservation, South ...

Original caption: Miscellaneous Photographs The Pine Ridge Agency is a former U.S. government agency responsible for the administration of the Pine Ridge Indian Reservation in South Dakota. The reservation is ... More

A black and white photo of a train track. Office of War Information Photograph

A black and white photo of a train track. Office of War Information Ph...

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

Gravel to be used in construction of Shasta Dam. Shasta County, California

Gravel to be used in construction of Shasta Dam. Shasta County, Califo...

Public domain photograph of California in 1930s, free to use, no copyright restrictions image - Picryl description

Strand grustak., North Østerdalen, Norway

Strand grustak., North Østerdalen, Norway

Strand grustak. Public domain photograph of car crash, accident, free to use, no copyright restrictions image - Picryl description

Gravel at end of belt conveyor. Shasta Dam, Shasta County, California

Gravel at end of belt conveyor. Shasta Dam, Shasta County, California

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

A black and white photo of a group of men. Office of War Information Photograph

A black and white photo of a group of men. Office of War Information P...

Public domain photograph - United States during the 1930s and 1940s, Farm Security Administration, New Deal, free to use, no copyright restrictions image - Picryl description

Strand grustak 1941. Magnar Berge, Ivar Breen og Bartold Hansen

Strand grustak 1941. Magnar Berge, Ivar Breen og Bartold Hansen

Strand grustak 1941. Magnar Berge, Ivar Breen og Bartold Hansen Public domain photograph of a truck, pickup truck, free to use, no copyright restrictions image - Picryl description

Tamping down gravel fill. Ridge well project, Saint Mary's County, Maryland

Tamping down gravel fill. Ridge well project, Saint Mary's County, Mar...

Public domain photograph - historical image of Maryland, United States, free to use, no copyright restrictions image - Picryl description

Rubber belt coveyor which brings gravel to Shasta Dam. Shasta County, California

Rubber belt coveyor which brings gravel to Shasta Dam. Shasta County, ...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Moving a section of the rubber belt conveyor which brings gravel to Shasta Dam. Shasta County, California

Moving a section of the rubber belt conveyor which brings gravel to Sh...

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description

Strand grustak, North Østerdalen, Norway

Strand grustak, North Østerdalen, Norway

Strand grustak Public domain photograph of a truck, pickup truck, free to use, no copyright restrictions image - Picryl description

Gravel conveyor belt. Shasta Dam. Shasta County, California

Gravel conveyor belt. Shasta Dam. Shasta County, California

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

Gravel on belt conveyor. Shasta Dam. Shasta County, California

Gravel on belt conveyor. Shasta Dam. Shasta County, California

Public domain photograph of California in 1930s, free to use, no copyright restrictions image - Picryl description

Gravel conveyor belt. Shasta Dam. Shasta County, California

Gravel conveyor belt. Shasta Dam. Shasta County, California

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

End of belt conveyor which transports gravel to the site of Shasta Dam. Shasta County, California

End of belt conveyor which transports gravel to the site of Shasta Dam...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Casing and pump rod before the final filling with sand and gravel. Ridge well project, St. Marys County, Maryland

Casing and pump rod before the final filling with sand and gravel. Rid...

Public domain photograph - historical image of Maryland, United States, free to use, no copyright restrictions image - Picryl description

Gravel conveyor belt. Shasta Dam. Shasta County, California

Gravel conveyor belt. Shasta Dam. Shasta County, California

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

Workmen handling section of rubber conveyor belt which transports gravel to Shasta Dam, Shasta County, California

Workmen handling section of rubber conveyor belt which transports grav...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Placing small gravel in bore hole around well point. Safe well demonstration, Ridge, Maryland, Saint Mary's County

Placing small gravel in bore hole around well point. Safe well demonst...

Picryl description: Public domain image of workers, labor, 1940s, economic conditions, free to use, no copyright restrictions.

Gravel conveyor belt. Shasta Dam. Shasta County, California

Gravel conveyor belt. Shasta Dam. Shasta County, California

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

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