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Geography, Maps and Atlases

Using bare-earth LiDAR imagery to reveal the Tahoe - Sierra frontal fault zone Lake Tahoe, California

This video provides a visual example of how airborne LiDAR (Light Detection And Ranging) imagery penetrates dense forest cover to reveal an active fault line not detectable with conventional aerial photography. The video shows an aerial perspective of the range front Mt. Tallac fault, which is one of five active faults that traverse the base of the steep mountains west of Lake Tahoe, California. From

Credit: U.S. Geological Survey, Department of the Interior/USGS; U.S. Geological Survey/video produced by Kevin Bazar, 9/30/2008.

Department of Geography Information