Yellowstone National Park, Eruption of the Castle. by Benjamin West Kilburn https://www.rawpixel.com/image/14296197/yellowstone-national-park-eruption-the-castle-benjamin-west-kilburnFree Image from public domain licenseFormarinsee Lake in Austria. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3337751/free-photo-image-basin-cc0-countrysideFree Image from public domain licenseOld Faithful under a winter full moonby Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038511/photo-image-nature-mountain-waterFree Image from public domain licenseThe Crater, Sonoma County, Cal. by Thomas Houseworth and Company https://www.rawpixel.com/image/14292722/the-crater-sonoma-county-cal-thomas-houseworth-and-companyFree Image from public domain licenseVolcanic "Blowing Cone" in Orotava, on the northern coast of Teneriffe by Charles Piazzi Smyth https://www.rawpixel.com/image/14315247/image-person-cross-artFree Image from public domain licenseMt Ruapehu from Waiouru Railway Station (1908) by W Beattie and Co. https://www.rawpixel.com/image/13027868/ruapehu-from-waiouru-railway-station-1908-beattie-and-coFree Image from public domain licenseLion Geyser and Heart Spring on a sunny afternoon by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038456/photo-image-nature-mountain-waterFree Image from public domain licenseUndulating hills covered with brown grass and green bushes. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3288411/free-photo-image-briones-cc0-cloud-pictures-imagesFree Image from public domain licenseShoshone Falls, Snake River, Idaho, From the South Bank by Timothy H O Sullivan https://www.rawpixel.com/image/14285467/shoshone-falls-snake-river-idaho-from-the-south-bank-timothy-sullivanFree Image from public domain licenseSteam phase of Steamboat Geyser, Norris Geyser Basin by Jim Peaco. Original public domain image from Flickr https://www.rawpixel.com/image/4039145/photo-image-tree-plant-smokeFree Image from public domain licenseMud Volcano and Porridge Pot, Waiotapu Valley, New Zealand by Valentine and Sons https://www.rawpixel.com/image/14273560/photo-image-person-man-public-domainFree Image from public domain licenseGifford Pinchot National Forest, pre-eruptive Spirit Lake. Original public domain image from Flickr https://www.rawpixel.com/image/4073226/photo-image-person-public-domain-sailboatFree Image from public domain licenseNevada Fall, height 700 ft., Yo Semite Valley, Cal. by J J Reilly https://www.rawpixel.com/image/14298444/nevada-fall-height-700-ft-semite-valley-cal-reillyFree Image from public domain licenseBenjamin Moseley. Stipple engraving by Marie-Anne Bourlier after R.M. Paye. https://www.rawpixel.com/image/14014426/benjamin-moseley-stipple-engraving-marie-anne-bourlier-after-rm-payeFree Image from public domain licenseCopper mining section between Ducktown and Copperhill, Tennessee. Fumes from smelting copper for sulfuric acid have… https://www.rawpixel.com/image/12328251/image-plant-tree-roadFree Image from public domain licenseVulkaanlandschap bij maanlicht (1656) by Monogrammist IAR of IAP https://www.rawpixel.com/image/13795479/vulkaanlandschap-bij-maanlicht-1656-monogrammist-iar-iapFree Image from public domain licenseGezicht op de ruïnes van Pompeï (c. 1850 - c. 1900) by anonymous https://www.rawpixel.com/image/13775562/gezicht-ruines-van-pompei-c-1850-1900-anonymousFree Image from public domain licenseWitches Cauldron, Devil's Canon, Geysers. Napa County, Cal. by Carleton Watkins https://www.rawpixel.com/image/14301331/witches-cauldron-devils-canon-geysers-napa-county-cal-carleton-watkinsFree Image from public domain licenseBuffon's Natural history, abridged. Including the history of the elements, the earth, mountains, rivers, seas, winds… https://www.rawpixel.com/image/13973038/image-cartoon-face-personFree Image from public domain licenseBeehive Geyser eruption opening day 2019 by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038394/photo-image-tree-plant-forestFree Image from public domain licenseGezicht op Golf van Napels vanaf kade bij kerk Santa Maria del Carmine (1778) by Louis Ducros https://www.rawpixel.com/image/13788164/image-paper-art-watercolorFree Image from public domain licenseBuffon's Natural history, abridged. Including the history of the elements, the earth, mountains, rivers, seas, winds… https://www.rawpixel.com/image/13997990/image-paper-frame-personFree Image from public domain licenseDe baai (1920) by Johannes Frederik Engelbert ten Klooster and Johannes Frederik Engelbert ten Klooster https://www.rawpixel.com/image/13763696/image-paper-cartoon-frameFree Image from public domain licenseCrested Pool in Upper Geyser Basin by Jim Peaco. Original public domain image from Flickr https://www.rawpixel.com/image/4039105/photo-image-nature-mountain-waterFree Image from public domain licenseLandschap met op de achtergrond de baai van Shimabara en de vulkaan Unzen (1862) by anonymous, Johan Maurits Dideric graaf… https://www.rawpixel.com/image/13775192/image-paper-cloud-frameFree Image from public domain licenseSomewhere in the Persian corridor. A United States Army truck convoy carrying supplies for Russia moving past Iranian huts.… https://www.rawpixel.com/image/12294623/photo-image-background-plant-skyFree Image from public domain license[Untitled photo, possibly related to: Erosion. Stewart County, Georgia]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12270333/photo-image-plant-tree-mountainFree Image from public domain license[Untitled photo, possibly related to: Morenci, Arizona. An open-pit copper mine of the Phelps Dodge mining corporation].… https://www.rawpixel.com/image/12293249/photo-image-sky-mountain-public-domainFree Image from public domain licensePit from which copper ore is extracted. One of the largest manmade holes in the earth. Ruth, Nevada. Sourced from the… https://www.rawpixel.com/image/12275066/photo-image-sky-mountain-earthFree Image from public domain licenseProspector in the desert. Esmeralda County, Nevada. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269918/photo-image-person-sky-mountainFree Image from public domain license[Untitled photo, possibly related to: Rocky Mountain George, old prospector, born in badlands of Wyoming. Esmeralda County… https://www.rawpixel.com/image/12269976/photo-image-person-sky-mountainFree Image from public domain license[Untitled photo, possibly related to: World's largest open pit iron mine at Hibbing, Minnesota. The pit is two and a half… https://www.rawpixel.com/image/12286336/photo-image-person-sky-smokeFree Image from public domain licenseCanyon and mesa. Otero County, New Mexico. Sourced from the Library of Congress. https://www.rawpixel.com/image/12265718/photo-image-plant-person-skyFree Image from public domain licenseWorld's largest open pit mine, Hull Rust Mahoning. Near Hibbing, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286584/photo-image-smoke-mountain-public-domainFree Image from public domain licenseSilverton, Colorado lies in a valley at 9400 feet elevation. This has been a center for mining and milling operations and… https://www.rawpixel.com/image/12150391/image-cloud-plant-artFree Image from public domain licenseGrand County, Colorado. Haystack and mountain. Sourced from the Library of Congress. https://www.rawpixel.com/image/12287103/photo-image-sky-mountain-public-domainFree Image from public domain license[Untitled photo, possibly related to: Guanica, Puerto Rico (vicinity). Burning a sugar cane field. This is a process that… https://www.rawpixel.com/image/12282049/photo-image-cloud-sky-leavesFree Image from public domain licenseSomewhere in the Persian corridor. A United States Army truck convoy carrying supplies for Russia on a ledge of a rocky… https://www.rawpixel.com/image/12294583/photo-image-frame-sky-roadFree Image from public domain licenseSacramento Pit copper mine at Bisbee, Arizona. This is a pit 435 feet deep. In 1911 a shaft was sunk into the slopes of the… https://www.rawpixel.com/image/12150259/image-art-sky-vintageFree Image from public domain licenseCultivating tobacco in a field near Barranquitas, Puerto Rico. Sourced from the Library of Congress. https://www.rawpixel.com/image/12264274/photo-image-dog-plant-personFree Image from public domain licenseMahoning pit. Hibbing, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12285319/photo-image-person-mountain-public-domainFree Image from public domain license[Untitled photo, possibly related to: One end of the largest open pit iron mine in the world. The Hull-Rust-Mahoning… https://www.rawpixel.com/image/12286313/photo-image-smoke-road-mountainFree Image from public domain licenseTobacco lands after the Connecticut River had subsided near Hatfield, Massachusetts. Sourced from the Library of Congress. https://www.rawpixel.com/image/12257955/photo-image-sky-beach-woodFree Image from public domain licenseGuanica, Puerto Rico (vicinity). Burning a sugar cane field. This is a process that destroys the leaves and makes the sugar… https://www.rawpixel.com/image/12281087/photo-image-sky-leaves-mountainFree Image from public domain licenseIrrigation water reservoir of FSA (Farm Security Administration) clients. Washington County, Utah by Russell Lee https://www.rawpixel.com/image/12150552/image-plant-person-artFree Image from public domain licenseLaguna (vicinity), New Mexico. Hills studded with dwarf cedars along the Atchison, Topeka and Santa Fe Railroad between… https://www.rawpixel.com/image/12292310/photo-image-cloud-sky-mountainFree Image from public domain licenseBarranquitas, Puerto Rico (vicinity). Cultivating tobacco on one of the steep hillside farms. Sourced from the Library of… https://www.rawpixel.com/image/12279906/photo-image-dog-road-mountainFree Image from public domain licenseLaguna (vicinity), New Mexico. A train going around a curve along the Atchison, Topeka and Santa Fe Railroad between Belen… https://www.rawpixel.com/image/12292511/photo-image-cloud-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Erosion. Stewart County, Georgia]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12270323/photo-image-background-person-patternFree Image from public domain licenseProspector marking his claim. Esmeralda County, Nevada. Sourced from the Library of Congress. https://www.rawpixel.com/image/12270215/photo-image-person-sky-mountainFree Image from public domain licenseBingham Canyon, Utah. Blasting at the open-pit mine of the Utah Copper Company. Sourced from the Library of Congress. https://www.rawpixel.com/image/12295452/photo-image-sky-mountain-public-domainFree Image from public domain licenseMountain valley near Telluride showing gold mill and Bridal Veil Falls and road winding around mountain up to the mine. San… https://www.rawpixel.com/image/12150353/image-plant-art-vintageFree Image from public domain license[Untitled photo, possibly related to: Morenci, Arizona. An open-pit copper mine of the Phelps Dodge mining corporation].… https://www.rawpixel.com/image/12293543/photo-image-sky-mountain-public-domainFree Image from public domain licenseSnowstorm over the mountains in Socorro County, New Mexico. Snow in the mountains is an important source of water for the… https://www.rawpixel.com/image/12147982/image-cloud-art-skyFree Image from public domain licenseRoad under construction by United States Resettlement Administration. Badlands National Park extension, South Dakota.… https://www.rawpixel.com/image/12267382/photo-image-cloud-person-skyFree Image from public domain licenseAbandoned mine and mill. Tonopah, Nevada. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269949/photo-image-sky-road-mountainFree Image from public domain license[Untitled photo, possibly related to: Guanica, Puerto Rico (vicinity). Burning a sugar cane field. This is a process that… https://www.rawpixel.com/image/12281074/photo-image-sky-leaves-mountainFree Image from public domain licenseBarranquitas (vicinity), Puerto Rico. Landscape in the tobacco country. Sourced from the Library of Congress. https://www.rawpixel.com/image/12283638/photo-image-plant-sky-treeFree Image from public domain license[Untitled photo, possibly related to: Guanica, Puerto Rico (vicinity). Burning a sugar cane field. This is a process that… https://www.rawpixel.com/image/12280863/photo-image-cloud-sky-leavesFree Image from public domain license[Untitled photo, possibly related to: Guanica, Puerto Rico (vicinity). Burning a sugar cane field. This is a process that… https://www.rawpixel.com/image/12280857/photo-image-plant-sky-leavesFree Image from public domain licenseKingman (vicinity), Arizona. A train on the Atchison, Topeka and Santa Fe Railroad between Seligman, Arizona and Needles… https://www.rawpixel.com/image/12292632/photo-image-person-sky-smokeFree Image from public domain license