This is the eroding stream bank that one of the projects that i'm working on hopes to stabilize. The very top/light brown is alluvial sands, next down is some finer sediment, followed by a clay layer that is folded and moved and bent and crazy looking, this layer was once upon a time the bottom of lake tahoe (when glaciers blocked the outlet and the lake filled the basin) and these deposits are found a few feet beneath the surface all over tahoe. Click to enlarge (if you're interested), its not a great picture, but the fresh erosion from high spring flows has made the soil layers very clear and easily distinguishable. I think its very cool, but then again, i'm a bit of a nerd.
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