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WSPC01093
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Last modified
1/26/2010 11:09:22 AM
Creation date
10/9/2006 2:33:55 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
7630.650
Description
Wild and Scenic - Yampa River
State
CO
Basin
Statewide
Date
2/1/1977
Author
DOI-Bureau of Mines
Title
Mineral Reconnaissance of the Green River from Flaming Gorge Dam through Dinosaur National Monument - Colorado and Utah
Water Supply Pro - Doc Type
Report/Study
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<br />.O'J2!7d <br /> <br />Copper <br />No commercial deposits of copper have been found in the area despite <br /> <br />a long history of prospecting. Noncommercial occurrences are widespread <br /> <br />in, the Red Creek Quartzite, such as on Dutch John Mountain, south of <br /> <br />Dutch John Mountain along the Uinta Fault, Goslin Mountain, Red Creek, <br /> <br />Jesse Ewing Canyon, Willow Creek, and Beaver Creek. Other occurrences <br /> <br />have been observed in Precambrian, Cambrian, Mississippian, and Upper <br /> <br />Triassic rocks in the general area. One copper prospect, called the <br /> <br />Terry mine, ,is in sec 33, T 3 N, R 22 E, but never has shipped any <br />commercial ore in 50 years.28 <br /> <br />~ <br /> <br />A number of placer gold deposits occur along the Green River in Red <br /> <br />Canyon. These deposits are said to contain "very fine placer gold." <br /> <br />One of the two most important occurrences is located at a point that <br /> <br />,projects into the Green River just above the mouth of Cart Creek in <br /> <br />sec 10, T 2 N, R 22 E, and the other, also associated with a point, is <br /> <br />on the south bank of the river about a mile upstream from the mouth of <br /> <br />Gorge Creek in secs 16 and"l?, T 2 N, R 23 E. "Gold values range from a <br /> <br /> <br />few cents' to a maximum of $1.60 per cubic yard 1'/4 eu ~, with a reasonable <br /> <br /> <br />mean value of about $0.10 to $0.40 per cubic yard Ifased on a gold price <br /> <br /> <br />of $35 an ounei? . Claims on the deposits were located in 1906 and <br /> <br /> <br />the 1930's."29 Hansen's report also notes that these and other small <br /> <br />gold workings near the mouths of Trail and Bear Canyons all appear to be <br /> <br />28Hansen, W. R. Geology of the FIaming Gorge Area, Utah-Colorado-WyoMing. <br />U.S. Geol. Survey Prof. Paper 490, 1965, p. 183. <br />29Hansen, W. R. Geology of the Flaming Gorge Area, Utah-Colorado-Wyoming. <br />U.S. Ceol. Survey Prof. Paper 490, 1965, pp. 183-184. <br /> <br />.17 <br /> <br />
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