Yellowstone National Park in Park County, Wyoming — The American West (Mountains)
Obsidian is a rock of high silica content with few visible crystals. By contrast, Golden Gate, 10 miles north, cuts through a lighter-colored flow of welded ash. The two formations are chemically identical but look different because they cooled under different conditions. Yellowstone's cliffs and canyons are charged with invisible movement: a sense of fiery, dynamic origin and gradual but unmistakable cracking and crumbling over time.
Location. 44° 49.44′ N, 110° 43.752′ W. Marker is in Yellowstone National Park, Wyoming, in Park County. Marker is on Grand Loop Road (U.S. 89), on the right when traveling south. Touch for map. Marker is located about 11 miles south of Mammoth Hot Springs. Marker is in this post office area: Yellowstone National Park WY 82190, United States of America.
Other nearby markers. At least 8 other markers are within 7 miles of this marker, measured as the crow flies. Roaring Mountain (approx. 3 miles away); Fumaroles (approx. 3 miles away); Sheepeater Cliff Living Thermometer (approx. 6.7 miles away); Porcelain Springs (approx. 6.8 miles away); Norris Geyser Basin (approx. 6.8 miles away); a different marker also named Fumaroles (approx. 6.8 miles away); Solfatara (approx. 6.8 miles away). Touch for a list and map of all markers in Yellowstone National Park.
Also see . . .
1. Obsidian Cliff, Prehistoric Lithic Quarry - Wikipedia Article. Obsidian Cliff was an important source of obsidian, prized by Native Americans for making knives, spear points, other lithic tools. Obsidian from this site was first quarried here about 12,000 years ago. Early natives of North America placed a high value on the obsidian that came from this cliff as well as other similar obsidian deposits in the area. Obsidian from Obsidian Cliff was traded and has been found in prehistoric sites as far away as Canada and Ohio. (Submitted on May 23, 2015, by Richard Denney of Austin, Texas.)
2. National Historic Landmark Nomination Form. Obsidian Cliff is a National Historic Landmark. The form reads in part: "Obsidian Cliff (48YE433) is located in northwestern Yellowstone National Park within the Middle (Submitted on May 23, 2015, by Richard Denney of Austin, Texas.)
Categories. • Native Americans • Notable Places •
Credits. This page was last revised on September 18, 2018. This page originally submitted on May 23, 2015, by Richard Denney of Austin, Texas. This page has been viewed 245 times since then. Last updated on September 16, 2018, by Craig Baker of Sylmar, California. Photos: 1, 2, 3, 4, 5, 6, 7. submitted on May 23, 2015, by Richard Denney of Austin, Texas. • Bill Pfingsten was the editor who published this page.