This paper presents evidence for the post-Price River and pre-North Horn orogeny, in the Gunnison Plateau of central Utah (Fig. 1), and shows its magnitude. The first definite evidence of such a movement was found by C. T. Hardy in 1951, although it had been suggested previously, without definite evidence, by Gilliland (1949, 1951).

The chief area studied was the eastern front of the Gunnison Plateau from Wales Canyon, west of Wales, Utah, southward about 3 miles. This area had received little detailed study previously. Spieker (1949) discussed its general features but did not recognize the...

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