Lake Mead National Recreation Area
Location Map This view is looking up Grapevine Canyon Wash located northwest of Laughlin, Nevada in southern Lake Mead National Recreation Area. Dikes and stocks of basaltic volcanic intrusions are more resistant to erosion that the surrounding older granite. The result are these darker, wall-like ridges, spires, and boulder piles that stand above the surrounding lighter-colored weathered granite and soil.
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Last modified: 9/22/2010