Category:Geology of Yellowstone National Park

Subcategories

This category has the following 19 subcategories, out of 19 total.

Media in category "Geology of Yellowstone National Park"

The following 142 files are in this category, out of 142 total.

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  Absaroka volcanic rock near Tower Fall (c4f35484-f199-4b56-b0ed-1657b00bb95e).jpg 3,456 × 5,184; 13.01 MB
  
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  Absaroka volcanic rock near Tower Fall (f76d5f3b-172a-4f05-871a-fa21a9889d0a).jpg 3,456 × 5,184; 11.13 MB
  
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  Algae and Calcite Formations (30766874314).jpg 8,688 × 5,792; 26.51 MB
  
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  An Igneous Sill Intrusion in Yellowstone National Park Wyoming USA.jpg 3,136 × 2,352; 1.69 MB
  
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  Aphyric rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 2 (31863628447).jpg 3,786 × 2,685; 5.61 MB
  
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  Aphyritc & partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 10 (39844313633).jpg 4,000 × 3,000; 6.74 MB
  
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  Aphyritc & partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 14 (46084659804).jpg 4,000 × 3,000; 5.46 MB
  
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  Aphyritc & partially devitrified rhyolitic obsidian with lithophysae (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 1 (39844369373).jpg 3,186 × 2,398; 7.49 MB
  
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  Basalt Columns - panoramio.jpg 1,280 × 960; 562 KB
  
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  Basalt flow near Tower Fall in Yellowstone.JPG 1,806 × 1,170; 399 KB
  
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  Caldera rim.jpg 5,152 × 3,864; 4.69 MB
  
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  Campbell's new revised third edition complete guide and descriptive book of the Yellowstone Park (1916) (14754588346).jpg 1,912 × 2,012; 809 KB
  
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  Campbell's new revised third edition complete guide and descriptive book of the Yellowstone Park (1916) (14754628906).jpg 1,880 × 3,788; 1.4 MB
  
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  Canyon wall Yellowstone.jpg 6,000 × 4,000; 21.46 MB
  
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  Columnar basalt closeup near Tower Fall in Yellowstone.JPG 2,048 × 1,360; 715 KB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 1 (31876512117).jpg 3,000 × 4,000; 8.07 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 10 (31876683447).jpg 4,000 × 3,000; 6.41 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 13 (39852808173).jpg 4,000 × 2,903; 6.11 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 16 (46818034561).jpg 3,000 × 3,902; 5.2 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 20 (45903075895).jpg 2,999 × 3,200; 5.21 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 22 (46765735842).jpg 3,000 × 4,000; 5.9 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 27 (45903225285).jpg 4,000 × 3,000; 6.11 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 32 (31877698467).jpg 3,008 × 2,000; 4.49 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 5 (46817937031).jpg 3,000 × 3,124; 5.18 MB
  
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  Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 7 (46093062574).jpg 3,000 × 3,645; 6.18 MB
  
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  Devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka ka; Obsidian Cliff, Yellowstone, Wyoming, USA) (41624576491).jpg 2,909 × 1,888; 4.33 MB
  
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  Dude Hill - Glacial Kame - Yellowstone USA.jpg 1,999 × 1,328; 944 KB
  
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  Evening light on basalt columns (49204803146).jpg 8,389 × 5,593; 30.15 MB
  
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  Exposed granite of Hellroaring Mountain (78169e2a-024d-4fc3-a3c6-72d628a4b2d8).jpg 8,688 × 5,792; 41.46 MB
  
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  Garnet intrusion (47995548647).jpg 6,015 × 4,010; 14.81 MB
  
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  Garnet intrusion (55087f68-548c-4241-acd1-1a80994d5c80).jpg 6,015 × 4,010; 14.82 MB
  
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  Gelbstein.jpg 728 × 506; 61 KB
  
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  Geode in Lamar Valley (9de8484e-c8b9-40a1-9113-06495d572ec6).jpg 8,688 × 5,792; 36.71 MB
  
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  Granite boulder, near Yellowstone Canyon. Yellowstone National Park. - NARA - 517273.jpg 3,000 × 1,780; 1.82 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 1 (47701905241).jpg 4,288 × 2,848; 5.85 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 11 (47707668331).jpg 3,968 × 2,976; 4.88 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 12 (47707663641).jpg 3,968 × 2,976; 4.74 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 13 (47654657662).jpg 3,968 × 2,270; 6.42 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 15 (40741251133).jpg 3,968 × 2,976; 5.18 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 16 (33830287218).jpg 3,968 × 2,976; 4.7 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 17 (46791539845).jpg 3,968 × 2,976; 5.65 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 18 (47654633552).jpg 3,968 × 2,976; 5.54 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 3 (46785725125).jpg 4,288 × 2,848; 5.44 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 4 (33824533358).jpg 4,288 × 2,848; 5.42 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 5 (32764218077).jpg 3,968 × 2,976; 5.72 MB
  
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  Hydrothermally altered volcanic rocks (Quaternary; Inspiration Point, Grand Canyon of the Yellowstone, Yellowstone, Wyoming, USA) 8 (33830336528).jpg 3,968 × 2,976; 5.58 MB
  
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  Ice formations on travertine (49518379551).jpg 5,792 × 8,688; 23 MB
  
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  Icicle formations on travertine (27825537879).jpg 8,688 × 5,792; 23.47 MB
  
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  Icicle formations on travertine (portrait) (24734791657).jpg 5,792 × 8,688; 28.36 MB
  
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  Landslide chute (Grand Canyon of the Yellowstone River, Yellowstone, Wyoming, USA) 1 (47648823702).jpg 2,848 × 4,288; 5.67 MB
  
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  Landslide chute (Grand Canyon of the Yellowstone River, Yellowstone, Wyoming, USA) 3 (47701976771).jpg 4,288 × 2,848; 6.09 MB
  
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  Landslide chute (Grand Canyon of the Yellowstone River, Yellowstone, Wyoming, USA) 6 (33830369428).jpg 2,976 × 3,968; 5.74 MB
  
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  Landslide chute (Grand Canyon of the Yellowstone River, Yellowstone, Wyoming, USA) 7 (33830362188).jpg 2,976 × 3,968; 6.06 MB
  
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  Large Petrified Trunk (3946942601).jpg 1,600 × 1,067; 489 KB
  
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  Lava flow near Tower Fall (43917533422).jpg 5,760 × 3,840; 22.61 MB
  
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  Lava flows, Gardner River Canyon (45227425432).jpg 3,654 × 5,481; 20.66 MB
  
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  Lower Falls of the Yellowstone River (Yellowstone, Wyoming, USA) 2 (47479880822).jpg 3,000 × 4,000; 6.44 MB
  
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  Mahogany obsidian (Nez Perce Creek Flow, Middle Pleistocene, about 152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 1 (20508711810).jpg 4,000 × 3,000; 3.68 MB
  
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  Mahogany obsidian (Nez Perce Creek Flow, Middle Pleistocene, about 152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 2 (20509962829).jpg 4,000 × 3,000; 3.57 MB
  
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  Mahogany obsidian (Nez Perce Creek Flow, Middle Pleistocene, about 152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 4 (20075720663).jpg 4,000 × 3,000; 4.12 MB
  
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  Natural Bridge (3679485158).jpg 1,067 × 1,600; 579 KB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 11 (20298102652).jpg 4,000 × 3,000; 4.22 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 12 (20280444876).jpg 4,000 × 3,000; 3.98 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 13 (20120030439).jpg 4,000 × 3,000; 3.58 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 14 (20306631965).jpg 4,000 × 3,000; 3.66 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 16 (20306724935).jpg 4,000 × 3,000; 3.07 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 2 (19685166733).jpg 4,000 × 3,000; 4.61 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 4 (20297876202).jpg 3,608 × 2,996; 3.15 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 5 (20118228890).jpg 4,000 × 3,000; 3.79 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 6 (20118398220).jpg 4,000 × 3,000; 4.21 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 7 (20118373338).jpg 4,000 × 3,000; 3.47 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 8 (19685381253).jpg 4,000 × 3,000; 3.43 MB
  
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  Obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 9 (20118571600).jpg 4,000 × 3,000; 3.86 MB
  
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  Obsidian Cliff in Yellowstone.JPG 2,048 × 1,360; 737 KB
  
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  Obsidian cliff.jpg 203 × 297; 24 KB
  
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  Obsidian intrusions (df268ad2-b647-42be-b9c1-3e513efce3fe).jpg 4,599 × 6,898; 26.71 MB
  
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  Obsidian lithics found in the field (34502458550).jpg 7,254 × 4,836; 17.09 MB
  
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  OverhangingCliffYNP1976.jpg 1,999 × 1,277; 803 KB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 1 (31863607667).jpg 4,000 × 3,000; 6.39 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 10 (46756397962).jpg 4,000 × 3,000; 5.01 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 11 (45893857635).jpg 4,000 × 3,000; 7.24 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 12 (31867552197).jpg 4,000 × 2,223; 7.75 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 13 (46084070044).jpg 4,000 × 3,000; 5.63 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 15 (32933796238).jpg 2,932 × 2,848; 6.45 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 18 (46809794081).jpg 3,228 × 3,000; 5.21 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 19 (45894550925).jpg 3,334 × 2,254; 7.02 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 2 (45889992095).jpg 4,000 × 3,000; 6.1 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 20 (32933848108).jpg 3,486 × 2,803; 5.54 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 21 (32940958968).jpg 4,000 × 3,000; 5.47 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 22 (46091701544).jpg 4,000 × 3,000; 6.42 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 24 (39851425373).jpg 4,000 × 3,000; 5.71 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 27 (46091649264).jpg 4,000 × 3,000; 5.43 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 29 (46764130282).jpg 4,000 × 3,000; 5.39 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 3 (46805438391).jpg 3,807 × 3,000; 5.49 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 4 (46805428071).jpg 4,000 × 3,000; 5.09 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 5 (31863639337).jpg 4,000 × 3,000; 5.15 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 6 (46752696302).jpg 4,000 × 2,945; 6.03 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 7 (32929469038).jpg 3,747 × 3,000; 5.95 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 8 (31863618907).jpg 2,274 × 2,556; 5.99 MB
  
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  Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 9 (45889936885).jpg 4,000 × 3,000; 6.25 MB
  
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  Partially devitrified rhyolitic obsidian with lithophysa (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 6 (45894579765).jpg 3,459 × 2,683; 7.29 MB
  
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  Partially devitrified rhyolitic obsidian with lithophysa (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 7 (46757294322).jpg 4,000 × 2,787; 5.68 MB
  
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  Partially devitrified rhyolitic obsidian with lithophysae (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 1 (46809164441).jpg 4,000 × 3,000; 7.56 MB
  
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  Partially devitrified rhyolitic obsidian with lithophysae (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 2 (45893933205).jpg 4,000 × 3,000; 7.72 MB
  
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  Partially devitrified rhyolitic obsidian with lithophysae (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 3 (45893923685).jpg 4,000 × 3,000; 6 MB
  
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  Partially devitrified rhyolitic obsidian with lithophysae (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 4 (46756637822).jpg 4,000 × 3,000; 7.95 MB
  
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  Partially devitrified rhyolitic obsidian with lithophysae (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 5 (45893899075).jpg 4,000 × 3,000; 5.26 MB
  
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  Perlite-nps-02315.jpg 1,999 × 1,248; 1.04 MB
  
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  Perlite-nps-02316.jpg 1,999 × 1,329; 1.05 MB
  
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  Petrified Trunk & the Lamar Valley (3946944019).jpg 1,600 × 1,067; 626 KB
  
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  Petrified Trunk & the Lamar Valley, from the Trail (3947725084).jpg 1,600 × 1,064; 333 KB
  
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  Petrified wood log with geode (ee0f475f-d37c-400b-b1a7-b2d5451a06b1).jpg 8,688 × 5,792; 32.54 MB
  
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  Petrified Wood on the Tom Miner Trail (3679469030).jpg 1,600 × 1,067; 1.01 MB
  
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  Porphyritic rhyolite (Pleistocene; Yellowstone, Wyoming, USA) (26755758577).jpg 2,413 × 1,447; 2.74 MB
  
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  PSM V43 D315 Point of specimen ridge.jpg 1,727 × 1,356; 302 KB
  
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  PSM V43 D316 Ancient and living tree line.jpg 1,774 × 989; 107 KB
  
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  PSM V43 D318 Petrified stumps near yancey east of mammoth springs.jpg 1,304 × 1,262; 334 KB
  
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  PSM V78 D433 Lava natural bridge in yellowstone park.png 1,647 × 2,271; 2.2 MB
  
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  PSM V80 D541 Glacial boulder yellowstone national park.png 1,238 × 905; 453 KB
  
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  Rhyolites (Nez Perce Creek Flow, Middle Pleistocene, ~152 ka; Firehole Falls, Yellowstone, Wyoming, USA) (20189256676).jpg 3,470 × 3,000; 8.22 MB
  
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  Rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 1 (46756612822).jpg 3,690 × 3,000; 6.38 MB
  
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  Rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 2 (46756627182).jpg 3,682 × 1,950; 6.47 MB
  
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  Rhyolitic perlite (Yellowstone, Wyoming, USA) (26613090897).jpg 1,083 × 1,177; 1.27 MB
  
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  SodaButteJacksonc1872.jpg 1,400 × 942; 884 KB
  
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  Spherulitic obsidian in obsidian clast breccia (Nez Perce Creek Flow, about 152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 3 (20118819870).jpg 4,000 × 3,000; 4.13 MB
  
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  Spherulitic obsidian in obsidian clast breccia (Nez Perce Creek Flow, about 152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 4 (20280563956).jpg 4,000 × 3,000; 3.66 MB
  
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  Spherulitic obsidian in obsidian clast breccia (Nez Perce Creek Flow, about 152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 6 (20306994805).jpg 3,611 × 2,774; 3.92 MB
  
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  Spherulitic obsidian in obsidian clast breccia (Nez Perce Creek Flow, ~152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 2 (20120158159).jpg 3,882 × 2,996; 4.44 MB
  
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  The Grotto Spring, about 2 miles above Crater Hills, Yellowstone. - NARA - 516684.jpg 3,000 × 2,212; 2.23 MB
  
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  Trace fossil (30302242260).jpg 3,749 × 2,906; 7.26 MB
  
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  Tuff Cliff (f3d3e19a-ad8e-4bcf-a238-6c18ce0e3495).jpg 5,472 × 3,648; 3.98 MB
  
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  Tuff cliff yellowstone national park.jpg 1,999 × 1,277; 1.92 MB
  
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  Two men on a large formation or terrace. TA2648.jpg 1,665 × 1,788; 264 KB
  
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  Uplifted sedimentary rock along the Gardiner River (fae432cb-0c7e-4194-a92b-3c700383fd31).jpg 3,360 × 5,040; 11.11 MB
  
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  Washburn Group volcaniclastics.jpg 4,608 × 3,456; 6.53 MB
  
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  Yellow rocks in Grand Canyon of the Yellowstone.JPG 1,360 × 2,048; 755 KB
  
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  Yellowstone Caldera fr.svg 560 × 292; 59 KB
  
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  Yellowstone Caldera map.jpg 600 × 635; 75 KB
  
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  Yellowstone N.P. 1997 61.jpg 1,039 × 683; 1.04 MB
  
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  Yellowstone National Park (1922) (14784222042).jpg 2,420 × 2,260; 1.6 MB
  
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  Limestone Hoodoos, by Ingersoll, T. W. (Truman Ward), 1862-1922 2.png 2,737 × 1,587; 5.86 MB
  
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  Limestone Hoodoos, by Ingersoll, T. W. (Truman Ward), 1862-1922.jpg 2,737 × 1,609; 1.86 MB