TutorVeritatis — Ozark Mountains Shut-In
Published: 2018-02-05 07:16:21 +0000 UTC; Views: 1038; Favourites: 3; Downloads: 0 Redirect to originalDescription
Formed by igneous rock layers, Shut-In's occur when layers of wearable rock are removed until the base layer is revealed. Due to the hardness of most igneous rock, water wears away much slower creating pockets the size of a quarter, to pools deep and wide enough to swim.
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