Grotto Geyser sinter formation, a result of sinter covering old tree stumps, is unique among geothermal features in Yellowstone National Park.
Location:
Upper Geyser Basin,
Yellowstone National Park,
WyomingImage ID:
13400Lat/Long:
44.47176, -110.84189 (
Coordinates: 44° 28' 18.34" N, 110° 50' 30.80" W)
Format: Digital 3:2
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