Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, W.M. Brown, III, U.S. Geological Survey. |
This small landslide is on a roadcut failure, on Colorado State Highway 93, between Golden and Boulder, Colorado. The landslide began in 1993 and cost Federal, State, and local governments $4 million to evaluate and remedy. Remedial measures included giant tiebacks holding the slide material into the Precambrian bedrock, together with the construction of an elaborate drainage system within the slide. Image Credit: W.M. Brown, III. U.S. Geological Survey The slopes above streams and rivers are subjected to a variety of processes that cause them to recede and retreat from the river or stream channel. These processes, collectively called mass wasting, can be classified according to rapidity of movement and according to the type of materials that are transported. |
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