The Obsidian Dome and the June Lake Loop By Byddi Lee April 11, 2021 February 11, 2012 2 Comments on The Obsidian Dome and the June Lake Loop Here’s what the Inyo National Forest Visitor Guide 2011-2012 has to say about the Obsidian Dome. “Obsidian Dome The dome is a hill of solid volcanic glass. Take Glass Flow Road (west) off US 395, eleven miles north of Mammoth Read More The Obsidian Dome and the June Lake Loop
