Part of the chain of Monyo-Inyo Craters, Obsidian Dome is, in essence, a big pile of rocks, but it’s worth the side trip to see for yourself — really! It’s a volcanic dome, which stretches up to 300 feet and is composed of obsidian (volcanic glass). Kids will love that you can explore the geology here by climbing up the dome, though be mindful that some of the obsidian is sharp.
Obsidian Dome
Deadman Summit, June Lake Loop, Mammoth Lakes, CA
