Landslide in Colorado
Large amounts of water don’t just produce flooding; increasing water pressures also tends to destabilize loose or fractured rocks on slopes. When water enters pore spaces within rocks, it exerts a pressure that works against any force holding the rock together. Adding enough water can weaken rocks or sediments to the point where they give way, causing a mudslide, as happened here.
This slide barely avoided a ranch at the lower right edge of this image.
-JBB
Image credit: Colorado Geological Survey
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