chemically-altered rocks

July 1, 2012Sulphur Works, Lassen Volcanic National ParkShasta County, California

Coordinates: 40.44924,-121.53464 (click for map)
chemically-altered rocks [Sulphur Works, Lassen Volcanic National Park, Shasta County, California]
Filename: 20120701-170745.jpg 3515x2636 pixels, ISO 80, f4.5 @ 1/1250 sec

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