Obsidian Dome Observation Site
Created by a Phreatic Blast - the explosion that takes place when magma reaches the water table and turns the water to steam - and the magma pushing up and cooling to create rock. This large dome is located West of Highway 395 north of Mammoth Lakes.
At a Glance
Usage: | Light |
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Closest Towns: | June Lake, CA |
Water: | No |
Restroom: | No |
Operated By: | Forest Service |