Thursday, February 8, 2018

Yellow mounds layer, Badlands Nat'l Park, South Dakota


Part of what makes the Badlands spectacular is the strong colors of the different layers of earth exposed as you go up and down its heights. The most eye-catching of these is the "yellow mounds layer," whose naming genesis is fairly obvious. These are one of the lowest layers in the badlands, formed when ancient seas drained away many millions of years ago and the mud at the bottom of the ocean weathered away into these yellow soils.

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