Debris flows on alluvial fans are a geologic hazard that can be of considerable consequence. This debris flow spilled large logs above the incised stream channel several years ago. I used my cell phone to record a few observations.
Quoting Hollis Robbins
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Much of human history is the story of catastrophic agricultural losses. The
invention of the silo in the nineteenth century reduced grain losses from
50% t...
7 hours ago
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