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Obsidian Dome: Volcanic Landscape and Glassy Flows. Photo Credit; Sheila Sund, As far as the eye can see (25430618690).jpg

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Published February 25, 2026

Obsidian Dome: Volcanic Landscape and Glassy Flows

Near June Lake off Highway 395, Obsidian Dome is a striking rhyolitic lava flow with glossy black obsidian and pumice. This accessible volcanic site offers short trails across the dome and panoramic views; a quick stop for geology enthusiasts.


A Lava Flow and Obsidian Mosaic

Obsidian Dome features massive obsidian flows, pumice layers, and fractured volcanic rock with sparse sagebrush. The glassy surface reflects light; the dome showcases rapid lava cooling in the Mono-Inyo volcanic chain.


Adventure With a Conservation Conscience

Short loop trails (0.5 to 1 mile) explore flows; views of June Lake basin.

Access is open: roadside parking, sunrise to sunset, pack out waste, stay on paths. No major closures; caution on sharp obsidian.

Obsidian Dome delivers Mono County volcanic landscape hiking with glassy beauty. For those seeking obsidian flows and Sierra vistas, the short trails repay exploration; a shiny volcanic highlight.