edge of an obsidian flow

September 22, 2014 • Big Obsidian Flow, Newberry National Volcanic Monument • Deschutes County, Oregon

Coordinates: 43.70522,-121.23545 (click for map)
edge of an obsidian flow [Big Obsidian Flow, Newberry National Volcanic Monument, Deschutes County, Oregon]
Filename: 20140922-135044.jpg 3424x2568 pixels, ISO 80, f4.0 @ 1/320 sec

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