"Field of wildflowers" by Intermountain Forest Service, USDA Region 4 Photography , public domain
 | US Topo 7.5-minuteWY Obsidian Cliff 2021 |
US Topo 7.5-minute map of Obsidian Cliff Quadrangle, Park County, Wyoming. Published by the U.S. Geological Survey (USGS).
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