The northeastern-most county in California with a total area of 4,203.37 square miles, but with a population under 10,000. Significant regions of this sparsely populated county include the Modoc Plateau, Great Basin, Cascade Range and Warner Mountains.
References
Stines, Norman S. (1910), Hoag district, Modoc County, California: Mining and Scientific Press: 100: 384-386.
Stines, Norman S. (1912), The camp of High Grade in northern California; historical facts and a description of the geology of the Hoag district in Modoc County: Mining Science: 65: 27-29.
Storms, William H. (1912), The High Grade mining district (Modoc County, California): Mining and Scientific Press: 105: 273-275.
Andersen, Olaf (1917), Aventurine laboradorite from California: American Mineralogist: 2: 91.
Tucker, W. Burling (1919), El Dorado, Lassen, Modoc, Tehama, and Tulare Counties: California Journal of Mines and Geology, California Mining Bureau. (Report 15): 226-253, 258-266, 271-308, 900-954.
Averill, Charles V. (1929), Redding field division, Lassen and Modoc, Napa, Lake, Glenn, Mendocino Counties: California Journal of Mines and Geology, California Division Mines (Report 25): 25(4): 2-19, 213-242, 337-365, 418-426, 456-467.
Powers, Howard Adorno (1932), The lavas of the Modoc Lava Bed quadrangle, California: American Mineralogist: 17: 253-294.
Averill, Charles V. (1936), Mineral resources of Modoc County: California Journal of Mines and Geology, California Division Mines (Report 32): 32: 445-457.
Linsley, Earle Garfield (1939), The giant Goose Lake meteorite from Modoc County, California: California Division Mines Report 35: 308-312.
O’Brien, J.C. (1948), Modoc County: California Journal of Mines and Geology (Report 44): 44(4): 349.
Gay, T.E. (1966) Economic mineral deposits of the Cascade Range, Modoc Plateau, and Great Basin Region of northeastern California. In: Geology of Northern California, California Division Mines and Geology Bulletin 190: 97-104.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 183, 277, 352.
Miller, M. S. (1988), Mineral Resources of the South Warner Contiguous Wilderness Study area: U.S. Bureau of Mines Mineral Land Assessment Open-File Report.
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