Steens Mountain, southern Oregon

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Steens Mountain, a tilted fault-block in southern Oregon. The Basin and Range Province extends northward into Oregon, as can be seen here in this view south towards Steens Mountain. The frontal fault of the range runs along its eastern base, and in classic tilted fault-block style, the range tilts back away from the fault, towards the west. Steens Mountain consists mostly of Miocene basalt. (ID: 30-3381)

fault-controlled, CRBG