View of cactus and surrounding area "Saguaros, Saguaro National Monument," Arizona. Photographer: Adams, Ansel, 1902-1984.… https://www.rawpixel.com/image/8799940/photo-image-plant-vintage-public-domainFree Image from public domain licenseClose in view, looking down toward peak formations, "Grand Canyon National Park," Arizona. Photographer: Adams, Ansel, 1902… https://www.rawpixel.com/image/8799505/photo-image-art-vintage-public-domainFree Image from public domain licenseDetail of cactus "Saguaros, Saguro National Monument," Arizona. Photographer: Adams, Ansel, 1902-1984. Original public… https://www.rawpixel.com/image/8799351/photo-image-plant-vintage-public-domainFree Image from public domain licenseRoadway, low horizon, mountains, clouded sky, "Near (Grand) Teton National Park." Photographer: Adams, Ansel, 1902-1984.… https://www.rawpixel.com/image/8799939/photo-image-cloud-vintage-skyFree Image from public domain licenseClose-up of leaves, from directly above, "In Glacier National Park," Montana. Photographer: Adams, Ansel, 1902-1984.… https://www.rawpixel.com/image/8799333/photo-image-plant-art-vintageFree Image from public domain licenseClose-Up Photograph of Boulder Dam. Photographer: Adams, Ansel, 1902-1984. Original public domain image from Flickr https://www.rawpixel.com/image/8799503/photo-image-vintage-public-domain-waterFree Image from public domain licensePhotograph Looking Up at Wires of the Boulder Dam Power Units. Photographer: Adams, Ansel, 1902-1984. Original public domain… https://www.rawpixel.com/image/8799941/photo-image-vintage-public-domain-personFree Image from public domain licensePhotograph of Electrical Wires of the Boulder Dam Power Units. Photographer: Adams, Ansel, 1902-1984. Original public domain… https://www.rawpixel.com/image/8799938/photo-image-vintage-public-domain-constructionFree Image from public domain licenseFront view of entrance, "Church, Taos Pueblo National Historic Landmark, New Mexico, 1942" Photographer: Adams, Ansel, 1902… https://www.rawpixel.com/image/8800057/photo-image-vintage-public-domain-wallFree Image from public domain license"Two people in background, 'The Rock of Ages in the Big Room,' Carlsbad Caverns National Park," New Mexico. Photographer:… https://www.rawpixel.com/image/8799744/photo-image-art-vintage-public-domainFree Image from public domain licenseTaken at dusk or dawn from various angles during eruption. "Old Faithful Geyser, Yellowstone National Park," Wyoming.… https://www.rawpixel.com/image/8800064/photo-image-vintage-public-domain-mountainFree Image from public domain license"Peak above Woody Lake, Kings River Canyon (Proposed as a national park)," California, 1936. Photographer: Adams, Ansel… https://www.rawpixel.com/image/8799871/photo-image-plant-art-vintageFree Image from public domain licenseClose-up of ferns, from directly above, "In Glacier National Park," Montana. Photographer: Adams, Ansel, 1902-1984. Original… https://www.rawpixel.com/image/8799970/photo-image-plant-vintage-leafFree Image from public domain licenseFull view of cactus with others surrounding, "Saguaros, Saguaro National Monument," Arizona. Photographer: Adams, Ansel… https://www.rawpixel.com/image/8799730/photo-image-plant-vintage-public-domainFree Image from public domain license"Navajo Woman and Infant, Canyon de Chelle, Arizona." Photographer: Adams, Ansel, 1902-1984. Original public domain image… https://www.rawpixel.com/image/8765869/photo-image-vintage-woman-childFree Image from public domain license"Formations - detail, formations 'in the Queen's Chambers,' at the entrance. Carlsbad Caverns National Park," New Mexico.… https://www.rawpixel.com/image/8799721/photo-image-art-vintage-public-domainFree Image from public domain license"Close up view of 'Elevator House,' Carlsbad Caverns National Park," New Mexico. Photographer: Adams, Ansel, 1902-1984.… https://www.rawpixel.com/image/8799742/photo-image-plant-vintage-public-domainFree Image from public domain license"The Giant Dome, largest stalagmite thus far discovered. It is 16 feet in diameter and estimated to be 60 million years old.… https://www.rawpixel.com/image/8799733/photo-image-art-vintage-public-domainFree Image from public domain license"Navajo Girl, Canyon de Chelle, Arizona." Photographer: Adams, Ansel, 1902-1984. Original public domain image from Flickr https://www.rawpixel.com/image/8770233/photo-image-woman-people-kidFree Image from public domain license