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JACKSON COUNTY

Mining districts: Big Creek, Big Horn, Buffalo Mountain, Copper Range, Independence Mountain, North Park, Pearl, Rand, Teller

Beekly, A.L., 1915, Geology and coal resources of North Park, Colo.: U.S. Geological Survey Bulletin 596, 121 p.

Spencer, A.C., 1903, Reconnaissance examination of the copper deposits at Pearl, Colo.: U.S. Geological Survey Bulletin 213, p. 163-169.

JEFFERSON COUNTY

Mining districts: Bear Creek, Copperdale, Creswell, Deer Creek, Crossan (Princeton), Evergreen, Golden City, Jefferson, Malachite, Oro Fino, Golden placers

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

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.

Sheridan, D.M., C.H. Maxwell, and A.L. Albee, 1967, Geology and uranium deposits of the Ralston Buttes district, Jefferson County, Colo., with sections on Paleozoic and younger sedimentary rocks, by Richard Van Horn: U.S. Geological Survey Professional Paper 520, 121 p.

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

L

LA PLATA COUNTY

Mining districts: Animas River, California (La Plata, Junction Creek, Oro Fino, May Day), Cave Basin (Mount Runlett), Hesperus, Needle Mountains (Bowman, Florida River, Tacoma, Vallecito River)

Cross, Whitman, A.C. Spencer, and C.W. Purington, 1899[1900], La Plata, Colo.: U.S. Geological Survey Folio 60, 15 p., 2 sheets of illus., 4 maps.

Cross, Whitman, Ernest Howe, J.D. Irving and W.H. Emmons, 1905, Needle Mountains, Colo.: U.S. Geological Survey Folio 131, 14 p., 2 sheets of illus., 4 maps.

Eckel, E.B., 1936, "Resurvey of the geology and ore deposits of the La Plata mining district, Colorado": Colorado Scientific Society Proceedings, v. 13, no. 9, p. 508-547.

Eckel, E.B., 1949, Geology and ore deposits of the La Plata district: U.S. Geological Survey Professional Paper 219, 179 p.

Emmons, W.H., 1905, The Neglected mine and near- by properties, Durango quadrangle, Colo.: U.S. Geological Survey Bulletin 260-B, p. 121-127.

LAKE COUNTY

Mining districts: Alicante (Arkansas, Birdseye), Box Creek, Buckeye Gulch, Colorado Creek (Colorado Gulch), Dewey (Hope, Granite), Granite, Half Moon, Harrington, Homestake, Independence, Leadville (California Gulch, Evans, Iowa Gulch, Iron Hill, Empire), Missouri, Mount Zion, Red Mountain, St. Kevin- Sugarloaf, Tenmile (Climax, Fremont Pass), Tennessee Pass (East Tennessee), Twin Lakes (Lackawana Gulch), Two Bit, Union Gulch, Weston Pass

Behr, C.H., Jr., 1932, "The Weston Pass mining district, Lake and Park Counties, Colorado': Colorado Scientific Society Proceedings, v. 13, no. 3, p. 5373.

Behre, C.H., Jr., 1953, Geology and ore deposits of the west slope of the Mosquite Range, Colorado: U.S. Geological Survey Professional Paper 235, 176 p.

Butler, B.S., and J.W. Vanderwilt, 1931, The Climax molybdenum deposit of Colorado": Colorado Scientific Society Proceedings, v. 13, no. 4, p. 309353.

Ebbley, N.E., Jr., and J.E. Schumacher, 1949, Examination, mapping, and sampling of mine shafts and underground working, Leadville, Lake County, Colo. : U.S. Bureau of Mines Report of Investigations RI 4518, 115 p.

Emmons, S.F., 1882, "Geology and mining industry of Leadville, Lake County, Colorado," in 2nd Annual Report of the U.S. Geological Survey 1880-81. p. 201-290.

Emmons, S.F., 1886, Geology and mining industry of Leadville, Colo., with atlas:: U.S. Geological 4 Survey Monograph 12, 770 p. and atlas of 33 sheets folio maps.

Emmons, S.F., and J.D. Irving. 1907, The Downtown district of Leadville, Colo.: U.S. Geological Survey Bulletin 320, 75 p.

Emmons, S.F., J.D. Irving, and G.F. Loughlin, 1927, Geology and ore deposits of the Leadville mining district, Colo.: U.S. Geological Survey Professional Paper 148, 368 p.

Henderson, C.W., 1933, The Climax molybdenum deposit, Colorado, by B.S. Butler and J.W. Vanderwilt, with a section on history, production, metallurgy, and development: U.S. Geological Survey Bulletin 846-C, p. 195-237.

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

Loughlin, G.F., 1918, The oxidized zinc ores of Leadville, Colo. : U.S. Geological Survey Bulletin 681, 91 p.

Loughlin, G.F., 1926, Guides to ore in the Leadville district, Colo.: U.S. Geological Survey Bulletin 779, 37 p.

Meeves, Henry C. and Richard P. Darnell, 1970, Silver potential and economic aspects of the Leadville District, Lake County, Colo.: U.S. Bureau of Mines Information Circular IC-8464, 105 p.

Sandberg, A.E., 1935, "Notes on ore minerals from the Sugar Loaf district, Lake County, Colorado": Colorado Scientific Society Proceedings, v. 13, no. 8, p. 495-5-4.

Singewald, Q.D., 1955 [1956], Sugar Loaf and St. Kevin mining districts, Lake County, Colo.: U.S. Geological Survey Bulletin 1027-E, p. 251-299.

Thompson, T.B., 1990, Precious metals in the Leadville mining district, Colorado: U.S. Geological Survey Bulletin 1857-F, p. 32-49.

LARIMER COUNTY

Mining districts: Buckhorn, Carter, Drake, Empire (Howes Gaulch), Fall City, Farnsworth, Home, Long Gulch, Manhattan, Marysville, Masonville, Steamboat Rock (Gray Rock).

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.

Sims, P.K., George Phair, and R.H. Moench, 1958, Geology of the Copper King uranium mine, Lariner County, Col.: U.S. Geological Survey Bulletin 1032D, p. 171-221.

Spencer, A.C., 1903, Reconnaissance examination of the copper deposits at Pearl, Colo.: U.S. Geological Survey Bulletin 213, p. 163-169.

LAS ANIMAS COUNTY

Mining districts: Chloride, La Veta (see Huerfano County), Spanish Peaks

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