Highway through desert near Colorado River. Road is constructed in a series of dips as a protection against flash flooding… https://www.rawpixel.com/image/8799349/photo-image-public-domain-nature-travelFree Image from public domain licenseLand section of high pressure gas line that crosses the Colorado River, May 1972. Photographer: O'Rear, Charles. Original… https://www.rawpixel.com/image/8799355/photo-image-vintage-public-domainFree Image from public domain licenseColorado River boat dock near Hoover Dam, May 1972. Photographer: O'Rear, Charles. Original public domain image from Flickr https://www.rawpixel.com/image/8799375/photo-image-paper-vintage-bookFree Image from public domain licensePaddlewheel Steamboat On Ohio River, May 1972. Photographer: Strode, William. Original public domain image from Flickr https://www.rawpixel.com/image/8799654/photo-image-public-domain-travelFree Image from public domain licenseFemale Figure with Bold, Geometric Face and Body Paint by Teotihuacan https://www.rawpixel.com/image/9010265/female-figure-with-bold-geometric-face-and-body-paint-teotihuacanFree Image from public domain licenseOpenwork furniture plaque with sphinx striding through a floral landscape https://www.rawpixel.com/image/9085921/photo-image-art-vintage-public-domainFree Image from public domain licenseColorado River-- from a helicopter over needles, May 1972, Photographer: O'Rear, Charles. Original public domain image from… https://www.rawpixel.com/image/8799819/photo-image-vintage-space-planetFree Image from public domain licenseSunset at Topock Marsh, formed by Colorado River, May 1972. Photographer: O'Rear, Charles. Original public domain image from… https://www.rawpixel.com/image/8799668/photo-image-light-sunset-skyFree Image from public domain licenseThe All-American Canal carries Colorado River water through the sand dunes of the western part of the Imperial Valley, May… https://www.rawpixel.com/image/8799816/photo-image-sky-public-domain-natureFree Image from public domain licensePalo Verde Valley wheatfield borders on the Colorado River, May 1973. Photographer: O'Rear, Charles. Original public domain… https://www.rawpixel.com/image/8799827/photo-image-plant-vintage-public-domainFree Image from public domain licenseEPA's helicopter surveying the Colorado River, May 1972. Photographer: O'Rear, Charles. Original public domain image from… https://www.rawpixel.com/image/8799817/photo-image-public-domain-personFree Image from public domain licenseCheckerboard fields of California's Imperial Valley are fed by Colorado River, May 1972. Photographer: O'Rear, Charles.… https://www.rawpixel.com/image/8799822/photo-image-public-domain-nature-landscapeFree Image from public domain licenseGrain harvester in the Palo Verde Valley. The field lies 200 yards from the Colorado River, May 1972. Photographer: O'Rear… https://www.rawpixel.com/image/8799815/photo-image-plant-public-domain-natureFree Image from public domain licenseThe "Belle Of Louisville" Docked At The "New" Louisville Waterfront On The Ohio River, May 1972. Photographer: Strode… https://www.rawpixel.com/image/8799659/photo-image-public-domain-person-waterFree Image from public domain licenseAll-American Canal carries Colorado River water through sand-swept area of the Imperial Valley, May 1972. Photographer:… https://www.rawpixel.com/image/8799811/photo-image-public-domain-sunlight-natureFree Image from public domain licenseSign along the Colorado River--misspelled but clear, May 1972. Photographer: O'Rear, Charles. Original public domain image… https://www.rawpixel.com/image/8799698/photo-image-public-domain-textFree Image from public domain licenseOpenwork furniture plaque with a striding, ram-headed sphinx, Assyrian https://www.rawpixel.com/image/9184654/photo-image-mesopotamia-wood-carving-african-artFree Image from public domain licensePointing to homes in the Colorado River area, May 1972. Photographer: O'Rear, Charles. Original public domain image from… https://www.rawpixel.com/image/8799641/photo-image-public-domain-posterFree Image from public domain licenseFarm workers shoulder tools at end of day near Ripley, in the fertile Palo Verde Valley of the lower Colorado River region… https://www.rawpixel.com/image/8770021/photo-image-light-sunset-skyFree Image from public domain licenseEight-Day Tall Case Clock with Musical Movement, movement by Daniel Burnap https://www.rawpixel.com/image/9186192/photo-image-clock-maker-daniel-elevenFree Image from public domain licenseMAY 15: Female firefighter with hoseKINGMAN, AZ - MAY 15: A female Kingman district wildland firefighter deploys a hose to… https://www.rawpixel.com/image/9648633/photo-image-face-person-fireFree Image from public domain licenseMAY 14: Fire packs and radios on firefightersYUMA, AZ - MAY 14: Fire packs and radios on wildland firefighters at the Mittry… https://www.rawpixel.com/image/9648634/photo-image-people-fire-public-domainFree Image from public domain licenseDavis dam on Colorado River. Lake Mohave forms in background, May 1972. Photographer: O'Rear, Charles. Original public… https://www.rawpixel.com/image/8799810/photo-image-sky-public-domain-woodFree Image from public domain licenseMAY 16: Using brushcutters to manage a fuel breakKINGMAN, AZ - MAY 16: A firefighter uses a brushcutter to trim fuels on a… https://www.rawpixel.com/image/9648354/photo-image-mountains-public-domain-2022Free Image from public domain licenseCalifornia fish and game biologist checks gill nets placed in the Colorado River. Nets provide data on the number of fish in… https://www.rawpixel.com/image/8770692/photo-image-light-fish-birdFree Image from public domain licenseMAY 15 Firefighters practice attack on mock fireKINGMAN, AZ - MAY 15: Wildland firefighters from the Kingman district set… https://www.rawpixel.com/image/9648344/photo-image-people-fire-public-domainFree Image from public domain licenseIncised horse frontlet carved into the shape of a flowering, volute palmette tree https://www.rawpixel.com/image/9330908/photo-image-art-vintage-leavesFree Image from public domain licenseMusic class practicing songs for May Day-Health Day festivities. Flint River Farms, Georgia. Sourced from the Library of… https://www.rawpixel.com/image/12240355/photo-image-person-music-public-domainFree Image from public domain licenseThe Mississippi river flows after the U.S. Army Corps of Engineers opened the Morganza Spillway. Original from NASA.… https://www.rawpixel.com/image/441278/free-photo-image-flood-environmental-control-conservationFree Image from public domain licenseANNAPOLIS, Md. (May 17, 2022) U.S. Naval Academy Midshipmen participate in Sea Trials. Sea Trials is a capstone event for… https://www.rawpixel.com/image/11072809/photo-image-people-public-domain-womenFree Image from public domain licenseDr. Thomas M. Adams, one of cooperative medical plan members, with project nurse Lillie May McCormick giving typhoid shot to… https://www.rawpixel.com/image/12241488/photo-image-person-public-domain-hospitalFree Image from public domain licenseHarvesting wheat in the Palo Verde Valley, 200 yards from the Colorado River, May 1972. Photographer: O'Rear, Charles.… https://www.rawpixel.com/image/8769840/photo-image-vintage-wood-personFree Image from public domain licenseMAY 15 Riparian fuels at the edge of Lake MittryYUMA, AZ - MAY 15: Riparian fuels along the banks of Lake Mittry in Yuma… https://www.rawpixel.com/image/9653594/photo-image-plant-grass-treeFree Image from public domain licenseMAY 15: Saltbush growing in cracked mudYUMA, AZ - MAY 15: Saltbush grows in the cracked mud near Lake Mittry, in Yuma… https://www.rawpixel.com/image/9653576/photo-image-plant-public-domain-2022Free Image from public domain licenseMAY 15 Moonset near YumaYUMA, AZ - MAY 15: The full moon sets behind a powerline support structure near Lake Mittry, in… https://www.rawpixel.com/image/9653796/photo-image-plant-moon-grassFree Image from public domain licenseMAY 15 Firefighters practice attack on mock fireKINGMAN, AZ - MAY 15: Wildland firefighters from the Kingman district climb… https://www.rawpixel.com/image/9653577/photo-image-person-fire-public-domainFree Image from public domain licenseMAY 15 Fire danger signKINGMAN, AZ - MAY 15: Fire danger sign, rating "very high", outside Kingman Field Office Kingman… https://www.rawpixel.com/image/9653565/image-plant-person-fireFree Image from public domain license Marines prepare for action. Breaking a tradition of 167 years, the U.S. Marine Corps started enlisting Negroes on June 1… https://www.rawpixel.com/image/12244267/photo-image-person-sky-baseballFree Image from public domain licenseAt the "Junior Rodeo," sponsored by the Parker Indian Rodeo Association and held on the Colorado River Indian Reservation… https://www.rawpixel.com/image/8770043/photo-image-vintage-person-hatFree Image from public domain licenseMAY 18 Landscape in the Virgin River Canyon Recreation AreaLittlefield, AZ - MAY 18: The Virgin River flows through the… https://www.rawpixel.com/image/9653794/photo-image-mountain-public-domain-natureFree Image from public domain licenseVase with Neptune and Vase with an Allegory of Venice by Geminiano Cozzi https://www.rawpixel.com/image/14247663/vase-with-neptune-and-vase-with-allegory-venice-geminiano-cozziFree Image from public domain licenseThe Dalles, Extremes of High & Low Water, 92 ft.] / [Head of the Dalles, Columbia River, Oregon by Carleton Watkins https://www.rawpixel.com/image/14256284/photo-image-steam-person-planesFree Image from public domain licenseMAY 14: A fireboat is pulled ashoreYUMA, AZ - MAY 14: A fire boat, based at the Yuma Field Office, is ashore at Mittry Lake… https://www.rawpixel.com/image/9653583/photo-image-person-fire-public-domainFree Image from public domain licenseSeated Hercules in the act of shooting at the stymphalian birds https://www.rawpixel.com/image/12838281/seated-hercules-the-act-shooting-the-stymphalian-birdsFree Image from public domain licenseNew Tidal Basin bridge under construction in Washington, D.C. The famous cherry blossoms along the Tidal Basin in… https://www.rawpixel.com/image/12302792/image-person-sky-treeFree Image from public domain licenseNew Tidal Basin bridge under construction in Washington, D.C. The famous cherry blossoms along the Tidal Basin in… https://www.rawpixel.com/image/12303820/image-person-sky-waterFree Image from public domain licenseMAY 18 Joshua tree in the Virgin River Canyon Recreation AreaLittlefield, AZ - MAY 18: A Joshua tree grows in the Bureau of… https://www.rawpixel.com/image/11071764/photo-image-cloud-palm-tree-plantFree Image from public domain licenseFishing the Colorado River with no strain, May 1972. Photographer: O'Rear, Charles. Original public domain image from Flickr https://www.rawpixel.com/image/8770771/photo-image-person-soil-carFree Image from public domain licenseA convoy of U.S. Marine Corps mine-resistant, ambush-protected vehicles assigned to the 1st Battalion, 7th Marine Regiment… https://www.rawpixel.com/image/8727977/photo-image-sunset-sky-public-domainFree Image from public domain licenseLake SturgeonThis lake sturgeon was discovered during fish sampling on the Bad River in Wisconsin. Sturgeon are currently… https://www.rawpixel.com/image/4029163/photo-image-person-nature-fishFree Image from public domain license"Junior rodeo" is sponsored by the Parker Indian Rodeo Association and takes place on the Colorado River Indian Reservation… https://www.rawpixel.com/image/8770778/photo-image-cow-person-animalFree Image from public domain license"Mr. Herd's car on the Moteo Bridge, Tutaekuri River": 'A day in Napier, May. 12.'. From the album: Family photograph album;… https://www.rawpixel.com/image/13028018/image-1920-photograph-1917Free Image from public domain licenseThe Great Johnstown Flood, May 31, 1889. A view over the Conemaugh river, just above Johnstown. Ruins of the Gauthier Steel… https://www.rawpixel.com/image/14288388/photo-image-person-art-public-domainFree Image from public domain licenseEncampment of Army of Potomac at Cumberland Landing on Pamunkey River, VA by James F Gibson https://www.rawpixel.com/image/14272195/photo-image-horse-cow-personFree Image from public domain licenseDominican Republic Civil Defense, Air Force search and rescue squadron, Army and other governmental and non-governmental… https://www.rawpixel.com/image/8727753/photo-image-public-domain-person-birdFree Image from public domain licenseCalifornia fish and game biologists take water samples from the Colorado River at "Goose Flats" in the Palo Verde Valley… https://www.rawpixel.com/image/8770760/photo-image-phone-person-natureFree Image from public domain licenseCalifornia fish and game biologist checks sample taken from Colorado River for oxygen content, May 1972. Photographer:… https://www.rawpixel.com/image/8769858/photo-image-hand-person-crystalFree Image from public domain licenseMusic class practicing songs for May Day-Health Day festivities. Flint River Farms, Georgia. Sourced from the Library of… https://www.rawpixel.com/image/12326982/image-person-music-public-domainFree Image from public domain licenseNew Tidal Basin bridge under construction in Washington, D.C. The famous cherry blossoms along the Tidal Basin in… https://www.rawpixel.com/image/12308630/image-person-architecture-constructionFree Image from public domain licenseMill River Valley, In Hampshire Co., Mass. Inundated May 16th, 1874 by Jotham A French https://www.rawpixel.com/image/14289474/photo-image-person-public-domainFree Image from public domain license