Vulcans Throne summit view, Grand Canyon NP, Arizona

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Vulcans Throne is a late Quaternary cinder cone on the Toroweap (Sevier) Fault, which separates the Uinkaret Plateau and its volcanic fields on the west from the Kanab Plateau to the east. The fault extends north along the Tuweep Valley, dropping the higher Kaibab Limestone down to near valley level, and south across the canyon through Prospect Canyon (in the center of the initial view), the lower part of which is (like Toroweap) filled with young volcanic flows. In the distance down the canyon, the Shivwits Plateau is visible. March 30, 2007.