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CHAFFEE COUNTY

Mining districts: Arkansas River placers (Salida, Nathrop, Buena Vista), Brown Creek placers (Browns Canyon), Calumet, Chalk Creek (Alpine, Romley, St. Elmo), Clear Creek Placers, Cleora, Cottonwood (North Cottonwood, South Cottonwood), Four Mile, Free Gold, Granite (Lost Canyon), Hope, La Plata (Winfield, Pine Creek), Monarch-Garfield, Riverside (Mt. Harvard), Sedalia, South Arkansas, Trout Creek, Turret Creek, Turret Mountain, Twin Lakes (Red Mountain)

Belser, Carl, 1956, Tungsten potential in Chaffee, Fremont, Gunnison, Lake, Larimer, Park and Summit counties, Colo.: U.S. Bureau of Mines Information Circular IC-7748, 31 p.

Crawford, R.D., 1910, A preliminary report on the geology of the Monarch mining district, Chaffee County, Colorado: Colorado Geological Survey Bulletin 1, 78 p.

Dings, M.G., and C.S. Robinson, 1957, Geology and ore deposits of the Garfield quadrangle, Colorado: U.S. Geological Survey Professional Paper 289, 110 p.

Howell, J.V., 1919, Twin Lakes district of Colorado: Colorado Geological Survey Bulletin 17, 106 p.

Lindgren, Waldemar, 1908, Notes on copper deposits in Chaffee, Fremont, and Jefferson counties, Colo.: U.S. Geological Survey Bulletin 340-B, p. 157174.

Van Alstine, R.E., 1969 [1970], Geology and mineral deposits of the Poncha Springs NE quadrangle, Chaffee County, Colo., with a section on Fluorspar mines and prospects by R.E. Van Alstine and D.C. Cox,: U.S. Geological Survey Professional Paper 626, 52 p.

Van Alstine, R.E., 1974, Geology and mineral deposits of the Poncha Springs SE quadrangle, Chaffee County, Colo: U.S. Geological Survey Professional Paper 829, 19 p.

CLEAR CREEK COUNTY

Mining districts: Alice (Lincoln, Yankee), Argentine (West Argentine), Banner, Canon, Dailey (Atlantic), Empire (Upper Union), Geneva Creek (Collier Mountain), Gold Dirt, Griffith (Georgetown, Silver Plume, Queens), Idaho Springs (Virginia Canyon, Paynes Bar, Spanish Bar Jackson Bar Corral, Cascade, Democrat, O'Hawa), Mill Creek, Montana (Lawson, Dumont, Downieville), Morris, Nevada, Trail Creek (Freeland, Lamartine), Union (Lower Union), Upper Fall River

Bastin, E.S., and J.M. Hill, 1917, Economic geology of Gilpin County and adjacent parts of Clear Creek and Boulder counties, Colo.: U.S. Geological Survey Professional Paper 94, 379 p.

Endlich, F.M.,1874, "Preliminary report upon the mining districts of Colorado", Chapter 1 in Hayden, F.V., Annual Report of the United States Geological and Geographical Survey of the Territories, embracing Colorado, being a report of progress of the exploration for the Year 1873: Washington, U.S. Government Printing Office, 1874. p. 276-301.

Harrison, J.E., and J.W. Wells, 1956, Geology and ore deposits of the Freeland-Lamartine district, Clear Creek County, Colo.: U.S. Geological Survey Bulletin 1032-B,.p. 33-127.

Harrison, J.E., and J.D. Wells, 1959, Geology and ore deposits of the Chicago Creek area, Clear Creek County, Colo.: U.S. Geological Survey Professional Paper 319, 92 p.

Hawley, C.C., and F.B. Moore, 1967, Geology and ore deposits of the Lawson-Dumont-Fall River district, Clear Creek County, Colo.: U.S. Geological Survey Bulletin 1231,. 92 p.

Lovering, T.S., 1935, Geology and ore deposits of the Montezuma quadrangle, Colo.: U.S. Geological Survey Professional Paper 178, 119 p.

Lovering, T.S., and E.N. Goddard, 1950 [1951], Geology and ore deposits of the Front Range, Colo.: U.S. Geological Survey Professional Paper 223, 319 p.

Moench, R.H., and A.A. Drake, Jr., 1966, Economic geology of the Idaho Springs district, Clear Creek and Gilpin counties, Colo.: U.S. Geological Survey Bulletin 1208, 91 p.

Schwochow, S.D., 1975, Mineral resources and mining potential in the Idaho Springs vicinity Clear Creek County, Colorado: Colorado Geological Survey open-file report 75-4.

Sims, P.K., and others. 1963, Geology of uranium and associated ore deposits, central part of the Front Range mineral belt, Colorado: U.S. Geological Survey Professional Paper 371, 119 p.

Sims, P.K., and D.M. Sheridan, 1964, Geology of uranium deposits in the Front Range, Colo. ,: U.S. Geological Survey Bulletin 1159, 116 p.

Spurr, J.E., and G.H. Garrey, 1905, Preliminary report on ore deposits in the Georgetown (Colo.) mining district: U.S. Geological Survey Bulletin 260, p. 99-120.

Spurr, J.E., and G.H. Garrey,1908, Economic geology of the Georgetown quadrangle (together with the Empire district), Colo., with general geology by S.H. Ball: U.S. Geological Survey Professional Paper 63, 422 p.

Spurr, J.E., and G.H. Garrey, 1906, The Idaho Springs mining district, Colo. : U.S. Geological Survey Bulletin 285-A, p. 35-40.

CONEJOS COUNTY

Mining districts: Conejos, Decatur, Platero (Ute, Axell, Gilmore, Stunner)

Patton, H.B., 1917, Geology and ore deposits of the Platoro-Summitville mining district, Colorado: Colorado Geological Survey Bulletin 13, 122 p.

Steven, T.A., and J.C. Ratte, 1960, Geology and ore deposits of the Summitville district, San Juan Mountains, Colo. : U.S. Geological Survey Professional Paper 343, 70 p.

COSTILLA COUNTY

Mining districts: Grayback (Russell), Plomo (Rito Seco), Sierra Blanca

Patton, H.B., C.E. Smith, G.M. Butler and A.J. Hoskin, 1910, Geology of the Grayback mining district, Costilla County, Colorado: Colorado Geological Survey Bulletin 2, 111 p.

CUSTER COUNTY

Mining districts: Fairview, Hardscrabble (Westcliffe-Silver Cliff), Oak Creek (Ilse, Spaulding), Rosita Hills (Rosita, Querida), Spruce Creek, Verde.

Cross,Whitman, 1896, "Geology of Silver Cliff and the Rosita Hills, Colo." Part 2b in Seventeenth Annual Report of the United States Geological Survey 18951896. , p. 263-403.

Emmons, S.F.,1896,. "The mines of Custer County, Colo.", Part 2c in Seventeenth Annual Report of the United States Geological Survey 1895-1896,.p. 405 472.

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