Uinta Mountain Group

Usage of Geologic Unit Name:
Uinta Mountain Group (CO*,UT*)
Proterozoic, Late*
Geologic Province:
Southern Rocky Mountain region*
Areal Extent:
Type Locality:
Named for Uinta Mountains, Daggett, Summit, Uintah, Duchesne, and Wasatch Cos., UT and Moffat Co., CO (Lovering and others, 1935).
(alphabetical): Jesse Ewing Canyon Formation (UT), Mount Watson Formation (UT), Red Pine Shale (UT*).
Unit Name History:
First used (Lovering and others, 1935). Revised, divided into Mutual Quartzite and Red Pine Shale (Williams, 1953). Isotopic dating (Crittenden and Peterman, 1975). Overview (Tweto, 1977). Age modified (Rowley and others, 1984). Revised to include Mount Watson Formation (Sanderson, 1984). Revised to include basal Jesse Ewing Canyon Formation (Sanderson and Wiley, 1986). Areal limits; Overview (Tweto, 1987). Paleomagnetics (Elston, 1989). Age modified (Elston, 1993).


Powell, J.W., 1876, Report on the geology of the eastern Uinta Mountains and a region of country adjacent thereto: U.S. Geological and Geographical Survey of the Territories (Powell), v. 7, 218 p.

Williams, N.C., 1953, Late pre-Cambrian and early Paleozoic geology of the western Uinta Mountains, Utah: American Association of Petroleum Geologists Bulletin, v. 37, no. 12, p. 2734-2742.

Crittenden, M.D., Jr. and Peterman, Z.E., 1975, Provisional Rb/Sr age of the Precambrian Uinta Mountain Group, northeastern Utah: Utah Geology, v. 2, no. 1, p. 75-77.

Tweto, Ogden, 1977, Nomenclature of Precambrian rocks in Colorado, IN Contributions to stratigraphy: U.S. Geological Survey Bulletin, 1422-D, p. D1-D22.

Sanderson, I.D., 1984, The Mount Watson Formation, an interpreted braided-fluvial deposit in the Uinta Mountain Group (Upper Precambrian), Utah: The Mountain Geologist, v. 21, no. 4, p. 157-164.

Rowley, P.D., Hansen, W.R., Tweto, Ogden and Carrara, P.E., 1984, Geologic map of the Vernal 1 degrees by 2 degrees quadrangle, Colorado, Utah, and Wyoming: U.S. Geological Survey Miscellaneous Investigations Series Map, I-1526, 1 sheet.

Sanderson, I.D. and Wiley, M.T., 1986, The Jesse Ewing Canyon Formation, an interpreted alluvial fan deposit in the basal Uinta Mountain Group (Middle Proterozoic): The Mountain Geologist, v. 23, no. 3, p. 77-89.

Tweto, Ogden, 1987, Rock units of the Precambrian basement in Colorado, IN Geology of the Precambrian basement in Colorado: U.S. Geological Survey Professional Paper, 1321-A, p. A1-A54, (incl. geologic map, scale 1:1,000,000).

Elston, D.P., 1989, Grand Canyon Supergroup, northern Arizona; stratigraphic summary and preliminary paleomagnetic correlations with parts of other North American Proterozoic successions, IN Jenney, J.P., and Reynolds, S.J., editors, Geologic evolution of Arizona: Arizona Geological Society Digest, v. 17, p. 259-272.

Elston, D.P., Link, P.K., Winston, Don and Horodyski, R.J., 1993, Correlations of Middle and Late Proterozoic successions, IN Link, P.K., ed., Middle and Late Proterozoic stratified rocks of the western U.S. Cordillera, Colorado Plateau, and Basin and Range province, Chapter 6, OF Reed, J.C., Jr., and others, editors, Precambrian; conterminous U.S.: Geological Society of America, The Geology of North America, The Decade of North American Geology (DNAG), v. C-2, p. 468-487.

Crossey, Laura J., Dehler, Carol M., Bloch, John D., Atudorei, Viorel., and Dodson, Crystal L., 2002, Stratigraphic, mineralogical and geochemical analysis of the Red Pine Shale, Uinta Mountain Group, NE Utah: Geological Society of America, Abstracts with Programs, v. 34, no. 4, p.18.

Vogel, M B., Moldowan, M., and Zinniker, D., 2002, Biomarkers in the Neoproterozoic Uinta Mountain Group, comparisons and inferences about biological input: Geological Society of America, Abstracts with Programs, v. 34, no. 4, p. 18.

Ashby, James M., Geissman, John W., and Weil, Arlo B., 2001, Paleomagnetic results from the Neoproterozoic Uinta Mountain Group, Utah and Colorado:
Geological Society of America, Abstracts with Programs, v. 33, no. 6, p. 435.

Schwab, Fred, 1998, Middle to late Proterozoic sedimentary tectonic framework of the Western and Southwestern U.S.; insights from the Uinta Mountain Group:
Geological Society of America, Abstracts with Prograpms, v. 30, no. 6, p. 35-36.

Ball, Theodore T., and Farmer, G. Lang, 1998, Infilling history of a Neoproterozoic intracratonic basin., Nd isotope provenance studies of the Uinta Mountain Group, Western United States: Precambrian Research, v. 87, no. 1-2, p. 1-18.

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* show accepted USGS usage.
Note that data on this page contains information that has been partly revised from bibliographic resources available via the National Geologic Map Database GEOLEX:
The URL is: https://gotbooks.miracosta.edu/gonp/coloradoplateau/lexicon/uintamountain_group.htm
Last modified: 1/7/2011