Mass Wasting

At my local park, there is a hill that is a great example of mass wasting.

Mass wasting, also known as slope movement or mass movement, is the geomorphic process by which soil, sand, regolith, and rock move downslope typically as a mass, largely under the force of gravity, but frequently affected by water and water content as in submarine environments and mudflows. Types of mass wasting include creep, slides, flows, topples, and falls, each with its own characteristic features, and taking place over timescales from seconds to years.

Wikipedia

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Panorama of Hill

This hillside experiences a lot of weathering due to thin vegetation cover, and flash flooding. You can see where a large chunk of of the hill has separated and moved down the slope.

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Concrete Barrier and Hill

The concrete barrier in the foreground was created to keep the hill from sliding into the parking lot. Just above it, you can see flows and channels where the flash flood water has carved into the hill. Behind the barrier is a lot of sandy substrate.

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