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THE SAN RAFAEL SWELL
The San Rafael Swell, with roughly 1,800 square miles of public land, is one of the Colorado Plateau’s classic Laramide-age uplifts. It is a broad, elongate, structural dome trending mostly northeast. Originally horizontal, the rock layers comprising this structure were compressed during the Laramide Orogeny into a convex, upward-arching anticline measuring about 75 miles long and 30 miles wide.
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