A block of C-4 detonates during a demolition range at Camp Shorabak, Afghanistan, Dec. 26, 2017. https://www.rawpixel.com/image/8729615/photo-image-smoke-public-domain-natureFree Image from public domain licenseLoggerhead shrikeGray and white bird with a black face mask and wing accents, perched on a narrow branch Credit NPS/Andy… https://www.rawpixel.com/image/4033914/photo-image-bird-animalFree Image from public domain license Scene in Custer State Park, a popular and scenic hiking, biking, and fishing destination in… https://www.rawpixel.com/image/8065335/photo-image-public-domain-united-statesFree Image from public domain license Scene in Custer State Park, a popular and scenic hiking, biking, and fishing destination in… https://www.rawpixel.com/image/8040305/photo-image-public-domain-united-statesFree Image from public domain license Even mysterious woodland creatures, or metal-art likenesses of them, have the Christmas spirit in… https://www.rawpixel.com/image/8043858/photo-image-christmas-art-public-domainFree Image from public domain license Penny's Diner is like many such diners modeled after streamliner train cars that served meals on the… https://www.rawpixel.com/image/8042378/photo-image-public-domain-cars-cityFree Image from public domain licenseMonument Valley, Arizona. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… https://www.rawpixel.com/image/421807/monument-valley-arizonaFree Image from public domain license Statue of an old-timey prospector at a rock shop outside Rapid City, known as the "Gateway City" to… https://www.rawpixel.com/image/8070718/photo-image-plant-person-treeFree Image from public domain license Small, colorful buildings in Rockwood, Tennessee, a city of about 5,000 residents, southwest of… https://www.rawpixel.com/image/8042471/photo-image-public-domain-city-united-statesFree Image from public domain license View from the roadway through Custer State Park, a popular and scenic hiking, biking, and fishing… https://www.rawpixel.com/image/8071120/photo-image-public-domain-united-statesFree Image from public domain license View from the roadway through Custer State Park, a popular and scenic hiking, biking, and fishing… https://www.rawpixel.com/image/8042231/photo-image-public-domain-united-statesFree Image from public domain license What is likely a vintage doctor's wagon, in a field along a road near the town of Lisco in southwest… https://www.rawpixel.com/image/8071727/photo-image-vintage-doctor-roadFree Image from public domain license Part of an abandoned storefront block in Rockwood, Tennessee, a city of about 5,000 residents… https://www.rawpixel.com/image/8042705/photo-image-public-domain-city-united-statesFree Image from public domain licenseU.S. Soldiers assigned to Apache Troop, 1st Squadron, 2nd Cavalry Regiment prepare their equipment before boarding Stryker… https://www.rawpixel.com/image/8739259/photo-image-public-domain-personFree Image from public domain licenseElk, sometimes by the dozens at once, comfortably mingle with visitors along the roadways of Grand Canyon National Park in… https://www.rawpixel.com/image/582423/carol-highsmiths-arizona-photographFree Image from public domain licenseMonument Valley, a Navajo Nation tribal park whose red-sandstone formations on the Colorado Plateau lie mostly in Arizona… https://www.rawpixel.com/image/421959/monument-valleyFree Image from public domain licenseRoosevelt Elk roam in Orick, California. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/434085/free-photo-image-deer-animals-carol-highsmithFree Image from public domain licenseRoosevelt Elk roam in Orick, California. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/434099/free-photo-image-deer-animals-elkFree Image from public domain license A very, very old, long-abandoned motel whose colorful facade remains strikingly visible (if fading)… https://www.rawpixel.com/image/8043826/photo-image-public-domain-united-statesFree Image from public domain license A very, very old, long-abandoned motel whose colorful facade remains strikingly visible (if fading)… https://www.rawpixel.com/image/8044177/photo-image-public-domain-united-statesFree Image from public domain license This old auto-body shop in Paxton, a village west of North Platte in southwest Nebraska, isn't… https://www.rawpixel.com/image/8043842/photo-image-public-domain-cars-united-statesFree Image from public domain licenseRoosevelt Elk roam in Orick, California. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/434100/free-photo-image-forest-farm-agriculture-industryFree Image from public domain license"Flat Tops" -- a range of the Rocky Mountains Colorado - Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/434639/the-rocky-mountains-coloradoFree Image from public domain license The Chapel in the Hills stands high above Rapid City, known as the "Gateway City" to the massive Mt.… https://www.rawpixel.com/image/8064839/photo-image-public-domain-black-cityFree Image from public domain license Spruce Street Station, a vintage gas station that is now (as of 2022) the visitors' bureau office in… https://www.rawpixel.com/image/8043876/photo-image-vintage-public-domain-cityFree Image from public domain license Rear view of the Chapel in the Hills, which stands high above Rapid City, known as the "Gateway… https://www.rawpixel.com/image/8042198/photo-image-public-domain-black-cityFree Image from public domain license An uncredited mural plugging the area's peach-growing industry in Kingston, Tennessee, a small city… https://www.rawpixel.com/image/8064439/photo-image-plant-person-treeFree Image from public domain licensePre-Columbian peoples used these ledges as protection from rain and snow in Walnut Canyon National Monument, located about… https://www.rawpixel.com/image/582344/carol-highsmiths-arizona-photographFree Image from public domain licenseAutumnal view of Rocky Mountain peaks called the Maroon Bells, between Pitkin County and Gunnison County, Colorado. Original… https://www.rawpixel.com/image/422056/rocky-mountain-peaksFree Image from public domain licenseGolden glowing red walls, twisted rock faces and beams of light shining through the Antelope Canyon, United States https://www.rawpixel.com/image/427008/free-photo-image-desert-cave-canyonView licenseGolden glowing red walls, twisted rock faces and beams of light shining through the Antelope Canyon, United States https://www.rawpixel.com/image/427000/free-photo-image-cave-desert-canyonView licenseSkunkbush (Rhus trilobata) in AutumnCredit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033503/photo-image-tree-plant-leafFree Image from public domain licenseA King Air 190, used to lead the air tankers to thier drop zones, is displayed for U.S. Department of Agriculture (USDA)… https://www.rawpixel.com/image/3390934/free-photo-image-aircraft-airfield-airlinerFree Image from public domain license Robert Summers's "Trail Boss" sculpture that honors those who drove cattle across the U.S. western… https://www.rawpixel.com/image/8040821/photo-image-public-domain-city-hillFree Image from public domain license A portion of a long, uncredited historical mural in Kingston, Tennessee, a small city southwest of… https://www.rawpixel.com/image/8040166/photo-image-face-person-artFree Image from public domain license An artistic wooden sign plugging the local peach-growing industry in Kingston, Tennessee, a small… https://www.rawpixel.com/image/8042826/photo-image-fruit-wooden-artFree Image from public domain licenseRain water collects on the needles of a pine tree in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho… https://www.rawpixel.com/image/3261708/free-photo-image-forest-abies-arapahoFree Image from public domain licensePine trees in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt National Forests, in… https://www.rawpixel.com/image/3260168/free-photo-image-abies-arapaho-and-roosevelt-national-forestsFree Image from public domain licenseWildflowers in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt National Forests, in… https://www.rawpixel.com/image/3260735/free-photo-image-arapaho-and-roosevelt-national-forests-blossomFree Image from public domain licensePine trees in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt National Forests, in… https://www.rawpixel.com/image/3260741/free-photo-image-spruce-forest-abiesFree Image from public domain licenseAerial panorama of the Ernie Schirmer Farms cotton harvest where family, farmers and workers come together, in Batesville… https://www.rawpixel.com/image/3260860/free-photo-image-aerial-view-agriculture-airfieldFree Image from public domain licenseWildflowers in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt National Forests, in… https://www.rawpixel.com/image/3260746/free-photo-image-arapaho-and-roosevelt-national-forests-blossomFree Image from public domain licensePine trees in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt National Forests, in… https://www.rawpixel.com/image/3260724/free-photo-image-abies-arapaho-and-roosevelt-national-forestsFree Image from public domain licenseHeadsets hang ready for aircrew the grab and go to assigned aircraft at https://www.rawpixel.com/image/3260159/free-photo-image-arapaho-and-roosevelt-national-forests-buildingFree Image from public domain licensePine trees in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt National Forests, in… https://www.rawpixel.com/image/3260736/free-photo-image-forest-abies-arapahoFree Image from public domain license Entrance sign to the Bowl Arena bowling alley in Terrytown, a small city between the bigger cities… https://www.rawpixel.com/image/8041114/photo-image-sky-hospital-roadFree Image from public domain license The Moderne-style Midwest Theater opened in Scottsbluff, the principal city in the southwest corner… https://www.rawpixel.com/image/8013067/photo-image-sky-public-domain-carFree Image from public domain licenseFall in the San Juan Mountains of Conejos County, Colorado, near the New Mexico border - Original image from Carol M.… https://www.rawpixel.com/image/434457/free-photo-image-forest-road-nature-streetFree Image from public domain licenseLocated in the southeast corner of California, the Imperial Sand Dunes are the largest mass of sand dunes in the state.… https://www.rawpixel.com/image/422002/free-photo-image-deserts-dunes-sandFree Image from public domain licenseMount Shasta (Karuk: Úytaahkoo or "White Mountain" : the origin of the name "Shasta" is vague, perhaps from Russian… https://www.rawpixel.com/image/2212390/trinity-national-forestFree Image from public domain licenseAsclepias subverticillata Horsetail milkweedCredit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033707/photo-image-flower-plantFree Image from public domain licenseBiscuitroot (Vesper bulbosus)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033716/photo-image-flower-plantFree Image from public domain licenseGreenthread Thelesperma megapotamicumCredit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033705/photo-image-flower-plantFree Image from public domain licenseSpineless Horsebrush (Tetradymia canescens )Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033512/photo-image-flower-plant-herbsFree Image from public domain licenseRayless tansyaster (Xanthisma grindelioides var grindelioides)Credit NPS/Hallie Larsen. Original public domain image from… https://www.rawpixel.com/image/4033509/photo-image-flower-plant-natureFree Image from public domain licenseSand sagebrush (Artemisia filifolia)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033507/photo-image-tree-plant-grassFree Image from public domain licenseSkunkbush (Rhus trilobata) Spring BlossomsCredit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033508/photo-image-flower-plant-beeFree Image from public domain licenseTownsend's Daisy (Townsendia annua)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033713/photo-image-flower-plant-natureFree Image from public domain licenseThe West Fork Clear Creek water flows across the access road to the U.S. Department of Agriculture (USDA) Forest Service… https://www.rawpixel.com/image/3260165/free-photo-image-abies-arapaho-and-roosevelt-national-forestsFree Image from public domain licensePine trees and mountain clouds in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt… https://www.rawpixel.com/image/3260171/free-photo-image-abies-arapaho-and-roosevelt-national-forestsFree Image from public domain licenseWheat fields at the Marc Arnusch Farms, in Keenesburg, CO, on June 19, 2020. https://www.rawpixel.com/image/3259585/free-photo-image-wheat-grass-landscapeFree Image from public domain license A view of the Bailey Yards, as of 2022 the world's largest train classification yard, of the Union… https://www.rawpixel.com/image/8071759/photo-image-public-domain-united-states-trainFree Image from public domain license Small, early 20th-Century buildings in Redwood Falls, a small city in southwest Minnesota … https://www.rawpixel.com/image/8070755/photo-image-road-public-domain-factoryFree Image from public domain license The North Dakota Veterans' Cemetery, near Mandan, is located in the southwest corner of Fort Abraham… https://www.rawpixel.com/image/8067647/photo-image-public-domain-united-statesFree Image from public domain license A string of diesel freight engines at the Bailey Yards, as of 2022 the world's largest train… https://www.rawpixel.com/image/8068622/photo-image-public-domain-united-states-trainFree Image from public domain license The local chapter hall of the Veterans of Foreign Wars, or VFW, organization in the small town of… https://www.rawpixel.com/image/8079773/photo-image-cloud-sky-american-flagFree Image from public domain license A crude grave marker at a very real Boot Hill (not the tourist-attraction variety of some U.S.… https://www.rawpixel.com/image/8071275/photo-image-public-domain-city-lineFree Image from public domain license Switch engines at the Bailey Yards, as of 2022 the world's largest train classification yard, of the… https://www.rawpixel.com/image/8067699/photo-image-public-domain-united-states-trainFree Image from public domain license A view of the Bailey Yards, as of 2022 the world's largest train classification yard, of the Union… https://www.rawpixel.com/image/8043798/photo-image-public-domain-united-states-trainFree Image from public domain license Marquee of the Fox Theatre, a 1929-vintage movie theater now (as of 2022) a remodeled performing… https://www.rawpixel.com/image/8064298/photo-image-arts-sky-vintageFree Image from public domain license Display of minature western scenes, created in the 1960s by Ernie Palmquist at the Fort Cody Trading… https://www.rawpixel.com/image/8071133/photo-image-public-domain-city-postFree Image from public domain license Display of minature western scenes, created in the 1960s by Ernie Palmquist at the Fort Cody Trading… https://www.rawpixel.com/image/8042220/photo-image-public-domain-city-postFree Image from public domain license The North Dakota Veterans' Cemetery, near Mandan, is located in the southwest corner of Fort Abraham… https://www.rawpixel.com/image/8064746/photo-image-public-domain-united-statesFree Image from public domain license Store window in downtown Lenoir City, a small city in Tennessee, southwest of larger Knoxville … https://www.rawpixel.com/image/8042575/photo-image-plant-wood-public-domainFree Image from public domain licenseU.S. Navy Damage Controlman 3rd Class Ian Smith stands covered in aqueous film forming foam on the flight deck of the… https://www.rawpixel.com/image/8741354/photo-image-public-domain-ocean-personFree Image from public domain licenseU.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt National Forests, Arapaho National Forest… https://www.rawpixel.com/image/3390909/free-photo-image-abies-adventure-arapahoFree Image from public domain licensePine trees and mountain clouds in the U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt… https://www.rawpixel.com/image/3390931/free-photo-image-abies-aircraft-airlinerFree Image from public domain licenseLower Antelope Canyon, Page, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3284400/free-photo-image-minimal-desert-caveFree Image from public domain licenseU.S. Service members stand at attention as Chairman of the Joint Chiefs of Staff Army Gen. Martin Dempsey invites Canadian… https://www.rawpixel.com/image/8742464/photo-image-public-domain-personFree Image from public domain licenseWoolly cup buckwheat (Eriogonum lachnogynum)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033517/photo-image-flower-plant-beeFree Image from public domain licensePrince’s plume (Stanleya pinnata)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033525/photo-image-flower-plant-natureFree Image from public domain licenseGolden crownbeard (Verbesina encelioides)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033708/photo-image-flower-plant-beeFree Image from public domain licenseEuphorbia albomarginataCredit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033518/photo-image-flower-plant-beeFree Image from public domain licenseStansbury cliffrose (Purshia stansburiana)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033527/photo-image-flower-trees-plantFree Image from public domain licenseWhitestem blazingstar (Mentzelia albicaulis)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033495/photo-image-flower-plant-natureFree Image from public domain licenseEsteve's dusty maidens (Chaenactis stevioides)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033494/photo-image-flower-plant-natureFree Image from public domain license Croton texensis DoveweedCredit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033501/photo-image-flower-plant-beeFree Image from public domain licensePrince's plume (Stanleya pinnata)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033498/photo-image-flower-plant-natureFree Image from public domain licenseTall mountain larkspur (Delphinium scaposum)Credit NPS/Hallie Larsen. Original public domain image from Flickr https://www.rawpixel.com/image/4033493/photo-image-flower-plant-natureFree Image from public domain license