Grand Prismatic Spring and thermophiles by Curtis Akin. Original public domain image from Flickr https://www.rawpixel.com/image/4038946/photo-image-tree-plant-natureFree Image from public domain licenseDragon's Mouth Geyser, Wairakei, New Zealand by Valentine and Sons https://www.rawpixel.com/image/14247063/dragons-mouth-geyser-wairakei-new-zealand-valentine-and-sonsFree Image from public domain licenseCastle Geyser late evening eruptionby Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038910/photo-image-summer-nature-mountainFree Image from public domain licenseTour group watching Lion Group by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038994/photo-image-person-nature-mountainFree Image from public domain licenseWaimangu Geyser, Rotorua, New Zealand (1917) by Arthur Iles. https://www.rawpixel.com/image/13028235/waimangu-geyser-rotorua-new-zealand-1917-arthur-ilesFree Image from public domain licenseScenes from the 2017 eclipse at Old Faithfuul Yellowstone Forever / Matt Ludin. Original public domain image from Flickr https://www.rawpixel.com/image/4226015/photo-image-public-domain-people-catFree Image from public domain licenseLion Geyser and Heart Springby Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4039043/photo-image-nature-mountain-waterFree Image from public domain licenseGrand Prismatic Spring Overlook on a clear day by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4039037/photo-image-nature-mountain-waterFree Image from public domain licenseMan in bowler hat, vintage illustration by Gejza Schiller. Remixed by rawpixel. https://www.rawpixel.com/image/9781623/image-art-vintage-paintingView licenseGrand Prismatic Spring outdoors yellowstone national park tranquility. https://www.rawpixel.com/image/13289022/grand-prismatic-spring-outdoors-yellowstone-national-park-tranquilityView licenseLone Star Geyser on a sunny afternoon by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038911/photo-image-tree-plant-forestFree Image from public domain licenseGrand Geyser erupts behind Castle Geyser by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038926/photo-image-nature-mountain-waterFree Image from public domain licenseGreat Fountain Geyser by Diane Renkin. Original public domain image from Flickr https://www.rawpixel.com/image/4038942/photo-image-nature-mountain-waterFree Image from public domain licenseBackcountry campers safely ski pass bison by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4226076/photo-image-public-domain-tree-plantFree Image from public domain licenseSuccessful Hunters dressing Elk, No. 56 from the series "Yellowstone National Park Views" by William I. Marshall https://www.rawpixel.com/image/8965051/photo-image-plant-person-treeFree Image from public domain licenseFountain Paint Pots, Lower Geyser Basin by Diane Renkin. Original public domain image from Flickr https://www.rawpixel.com/image/4038808/photo-image-tree-plant-smokeFree Image from public domain licenseCastle Geyser eruption with double rainbow by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038908/photo-image-rainbow-summer-natureFree Image from public domain licenseWhite Dome Geyser eruption by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038977/photo-image-nature-mountain-waterFree Image from public domain licenseGrand Prismatic Spring yellowstone national park tranquility reflection. https://www.rawpixel.com/image/13289026/grand-prismatic-spring-yellowstone-national-park-tranquility-reflectionView licenseWinter solstice Castle Geyser eruption with rainbow by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038882/photo-image-rainbow-nature-mountainFree Image from public domain licenseFog spray outdoors nature smoke. AI generated Image by rawpixel. https://www.rawpixel.com/image/12551777/fog-spray-outdoors-nature-smoke-generated-image-rawpixelView licenseTrees in nature with hot spring water geyser and mud lake in Spring, Yellowstone National Park. Original public domain image… https://www.rawpixel.com/image/3304850/free-photo-image-yellowstone-springs-abies-basinFree Image from public domain licenseCanary Spring, Mammoth Hot Springs by Neal Herbert. Original public domain image from Flickr https://www.rawpixel.com/image/4038881/photo-image-ocean-nature-mountainFree Image from public domain licenseWild wolf collage element psd https://www.rawpixel.com/image/9256225/wild-wolf-collage-element-psdView license"Castle Geyser Cove, Yellowstone National Park," Wyoming. Photographer: Adams, Ansel, 1902-1984. Original public domain… https://www.rawpixel.com/image/8802599/photo-image-mountain-nature-waterFree Image from public domain licenseAn Armored Vehicle-Launched MICLIC (AVLM) from the 391st Mobile Augmentation Company (MAC) detonates its line charge after… https://www.rawpixel.com/image/3582678/free-photo-image-301-301st-mebFree Image from public domain licenseYellowstone National Park outdoors nature yellowstone national park. AI generated Image by rawpixel. https://www.rawpixel.com/image/12550643/photo-image-cloud-steam-plantView licenseEarly summer crowd at Old Faithfulby Neal Herbert. Original public domain image from Flickr https://www.rawpixel.com/image/4038765/photo-image-person-nature-mountainFree Image from public domain licenseSilex Spring in the Lower Geyser Basin by Diane Renkin. Original public domain image from Flickr https://www.rawpixel.com/image/4038954/photo-image-tree-ocean-plantFree Image from public domain licenseSunrise steam rises into the air at Steamboat Geyser by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4039030/photo-image-tree-plant-fireFree Image from public domain licenseOutdoors nature rock white background. https://www.rawpixel.com/image/14363731/outdoors-nature-rock-white-backgroundView licenseYellowstone National Park outdoors nature yellowstone national park. AI generated Image by rawpixel. https://www.rawpixel.com/image/12550642/photo-image-cloud-sunset-steamView licenseCloud with a sparkle fireworks nature night. https://www.rawpixel.com/image/13833700/cloud-with-sparkle-fireworks-nature-nightView licenseGrotto Geyser Cone After Eruption, Upper Geyser Basin, Yellowstone National Park. https://www.rawpixel.com/image/14257681/photo-image-plant-person-treeFree Image from public domain licenseBlue Spotlight with Particles Illuminating the Stage fireworks lighting fountain. AI generated Image by rawpixel. https://www.rawpixel.com/image/13130031/photo-image-background-galaxy-aestheticView licenseBrown dog, vintage animal illustration by Gejza Schiller. Remixed by rawpixel. https://www.rawpixel.com/image/9815389/image-dog-art-vintageView licenseCloud with a sparkle nature black background splashing. https://www.rawpixel.com/image/14136561/cloud-with-sparkle-nature-black-background-splashingView licenseOld Faithful eruption and rainbowby Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4226033/photo-image-public-domain-nature-personFree Image from public domain licensePNG Niagara waterfall border outdoors nature landscape. https://www.rawpixel.com/image/14350521/png-niagara-waterfall-border-outdoors-nature-landscapeView licenseVolcano mountain png circle badge element, transparent background https://www.rawpixel.com/image/9212620/volcano-mountain-png-circle-badge-element-transparent-backgroundView licenseColorful thermophiles at Grand Prismatic Spring by Neal Herbert. Original public domain image from Flickr https://www.rawpixel.com/image/4039066/photo-image-ocean-nature-mountainFree Image from public domain licenseBag handbag blue accessories. https://www.rawpixel.com/image/14040354/bag-handbag-blue-accessoriesView licenseBoy wearing sunhat, vintage illustration by Gejza Schiller. Remixed by rawpixel. https://www.rawpixel.com/image/9815385/image-art-vintage-pinkView licenseWoman with baby stroller, vintage illustration by Gejza Schiller. Remixed by rawpixel. https://www.rawpixel.com/image/9781626/image-dog-person-artView licenseRanger Terrance explains the mechanics of geysers, while a "grand" example erupts in the background photo by Neal Herbert.… https://www.rawpixel.com/image/4226059/photo-image-public-domain-nature-personFree Image from public domain licenseWaterfall nature landscape outdoors. https://www.rawpixel.com/image/14339464/waterfall-nature-landscape-outdoorsView licenseKaren Diver visit to New Zealand, October 25 - 31, 2016. Visit to Te Puia. Original public domain image from Flickr https://www.rawpixel.com/image/8753804/photo-image-public-domain-mountain-birdFree Image from public domain licenseCloud with a sparkle outdoors nature smoke. https://www.rawpixel.com/image/13832026/cloud-with-sparkle-outdoors-nature-smokeView licenseGrand Prismatic Hot Springby Diane Renkin. Original public domain image from Flickr https://www.rawpixel.com/image/4038856/photo-image-nature-mountain-waterFree Image from public domain licenseVintage baby stroller illustration by Gejza Schiller. Remixed by rawpixel. https://www.rawpixel.com/image/9822543/image-art-vintage-illustrationView licenseMike Poland, USGS Scientist-in-Charge, replacing batteriest in a data logger (3)NPS / Jacob W. Frank https://www.rawpixel.com/image/9653776/photo-image-person-wood-public-domainFree Image from public domain licenseVolcano smoke png badge element, transparent background https://www.rawpixel.com/image/9212215/volcano-smoke-png-badge-element-transparent-backgroundView licenseA thermal imaging camera shows increased temperatures under a trail in Norris Geyser Basin by Jacob W. Frank. Original… https://www.rawpixel.com/image/4226123/photo-image-phone-public-domain-personFree Image from public domain licenseCross-country skiing from Lone Star Geyser to Snow Lodge on the Howard Eaton Trail by Jacob W. Frank. Original public domain… https://www.rawpixel.com/image/4226081/photo-image-public-domain-tree-plantFree Image from public domain licenseDrone shot of the Haifoss waterfall, Iceland https://www.rawpixel.com/image/1205915/haifoss-waterfall-icelandView licenseWild wolf isolated image https://www.rawpixel.com/image/9238928/wild-wolf-isolated-imageView licenseVolcano mountain circle badge isolated on white background https://www.rawpixel.com/image/9212613/volcano-mountain-circle-badge-isolated-white-backgroundView licenseHot Spring and Castle Geyser. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7652910/photo-image-vintage-art-public-domainFree Image from public domain licenseChateau TongariroWe travelled from Hamilton to Wellington by coach. I had a bad fall in a hotel swimming pool somewhere… https://www.rawpixel.com/image/11193342/photo-image-plant-person-grassFree Image from public domain licenseVolcano smoke badge isolated on white background https://www.rawpixel.com/image/9212210/volcano-smoke-badge-isolated-white-backgroundView licenseMount Bromo volcano in Indonesia https://www.rawpixel.com/image/1198851/smoke-out-volcanoView licenseWaimangu Geyser erupting (1903) by A Cromwell Shepherd and Muir and Moodie. https://www.rawpixel.com/image/13030400/waimangu-geyser-erupting-1903-cromwell-shepherd-and-muir-and-moodieFree Image from public domain licenseMilky Way and Castle Geyser viewed from the boardwalk over the Firehole River by Jacob W. Frank. Original public domain… https://www.rawpixel.com/image/4038528/photo-image-tree-plant-personFree Image from public domain licenseRotomahana crater, after eruption June 10 1886 (1886) by Burton Brothers and Frederick Muir. https://www.rawpixel.com/image/13029349/image-people-sky-smokeFree Image from public domain licenseBison on the move in Lower Geyser Basin by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038564/photo-image-plant-nature-grassFree Image from public domain licenseSálazie, Réunion Islands: hot springs and snowy peaks. Tinted lithograph by A. Roussin after himself. https://www.rawpixel.com/image/13981368/image-plant-person-treeFree Image from public domain licenseMound and pipe after the "Geyser" hot water springs in Iceland have erupted. Coloured engraving by F. Chesham, 1797, after a… https://www.rawpixel.com/image/13977533/image-cloud-horse-personFree Image from public domain licenseNapier-Taupo trip (18 February 1913 - 4 March 1913) by Leslie Adkin. https://www.rawpixel.com/image/13029065/napier-taupo-trip-18-february-1913-march-1913-leslie-adkinFree Image from public domain licenseSun rays shining through steam and trees at Norris Geyser Basin by Neal Herbert. Original public domain image from Flickr https://www.rawpixel.com/image/4038711/photo-image-light-tree-plantFree Image from public domain licenseBull bison walks in the snowy road near Midway Geyser Basin. Original public domain image from Flickr https://www.rawpixel.com/image/4038176/photo-image-dog-animalFree Image from public domain license