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Geologic Map of the Big Bear 30 x 60 Degree Quadrangle.

Index map of 100 K quadrangles Location map of the Big Bear 30 x 60 Degree Quadrangle.

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Index map of 24K quadrangles within the Big Bear 100K 30 x 60 Degree Quadrangle Selected maps available for the Big Bear 30 x 60 Degree Quadrangle. See the list below.

For regional information, see Geologic Reports about the Big Bear 30 x 60 Degree Quadrangle Region.

Below are selected resources about individual 7.5' quadrangles.
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Big Bear City 7.5' Quadrangle

Miller, Fred K. and Cossette, Pamela M., 2004, Preliminary geologic map of the Big Bear City 7.5' Quadrangle, San Bernardino County, California: U.S. Geological Survey Open-File Report 2004-1193 <http://pubs.usgs.gov/of/2004/1193/>.

Dibblee, T.W., Jr., 1964, Geologic map of the San Gorgonio Mountain quadrangle, San Bernardino and Riverside Counties, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-431, scale 1:62,500.

Bighorn Canyon 7.5' Quadrangle

Sadler, P.M., 1982, Geologic map of the Bighorn Canyon 7.5' quadrangle: California Division of Mines and Geology Open File Report OFR 82-18 S.F., Plate A, scale 1:24,000.

Dibblee, T.W., Jr., 1967, Geologic map of the Old Woman Springs quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-518, scale 1:62,500.

Matti, J.C., Cox, B.F., Rodriguez, E.A., Obi, C.M., Powell, R.E., Hinkle, M.E., Griscom, Andrew, Sabine, Charles, and Cwick, G.J., 1982, Mineral resource potential map of the Bighorn Mountains Wilderness Study Area (CDCA-217), San Bernardino County, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-1493-A, scale 1:48,000.

Emerson Lake 7.5' Quadrangle

Knauer, L.C., 1982, Geology of the Emerson Lake quadrangle, San Bernardino County, California: Los Angeles, University of California, unpublished M.S. thesis, 190 p., scale 1:24,000.

Dibblee, T.W., Jr., 1967, Geologic map of the Emerson Lake quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-490, scale 1:62,500.

Fawnskin 7.5' Quadrangle

Miller, F. K.; Matti, J. C., Brown, H. J., and Powell, R. E. 2001, Digital geologic map of Fawnskin 7.5' quadrangle, San Bernardino County, California: U.S. Geological Survey Open-File Report 98-579 <http://wrgis.wr.usgs.gov/open-file/of98-579/>.

Brown, H.J., 1984, Paleozoic carbonate stratigraphy of the San Bernardino Mountains, southern California: Geological Society of America Abstracts with Programs, v. 16, p. 456.

Brown, H.J., 1987, Geologic setting and operations overview, Lucerne Valley limestone mining district, Lucerne Valley, California, in Pierce, W., ed., 21st Annual Industrial Mineral Conference Proceedings: Arizona Bureau of Mines Special Report 4, p. 44-54.

Brown, H.J., 1991, Stratigraphy and paleogeographic setting of Paleozoic rocks in the San Bernardino Mountains, California, in Cooper, J.D., and Stevens, C.H., eds., Paleozoic Paleogeography of the western United States-II: Pacific Section, Society of Economic Paleontologists and Mineralogists, v. 67, p. 193-207.

Butters, D.J., 1981, Geology and geochemistry of the Baldwin Gneiss in the vicinity of Sugarloaf Mountain, San Bernardino Mountains, California: Los Angeles, California State University, unpublished M.S. thesis, 55 p., scale 1:12,000.

Calzia, J.P., Matti, J.C., and Gantenbein, Michael, 1995, Geology, geochemistry, and resource potential of carbonate rocks in the San Bernardino National Forest, California: U. S. Geological Survey Open-File Report 95-39, 26 p., scale 1:100,000.

Cameron, C.S., 1981, Geology of the Sugarloaf and Delamar Mountain areas, San Bernardino Mountains, California: Cambridge, Massachusetts Institute of Technology, unpublished Ph.D. Thesis, 399 p.

Cameron, C.S., 1982, Stratigraphy and significance of the upper Precambrian Big Bear Group, in Cooper, J.P., Troxel, B.W., and Wright, L.A., eds., Geology of selected areas in the San Bernardino Mountains, western Mojave Desert, and southern Great Basin, California: Geological Society of America, Cordilleran Section, 78th annual meeting, Anaheim, Calif., 1982, Field Trip 9 Volume and Guidebook, p. 5-20.

Matti, J.C., Powell, R.E., and Miller, F.K., 1998, The San Bernardino Mountains of southern California: a Quaternary fold-, thrust-, and tear-fault belt: Geological Society of America Abstracts with Programs, v. 30, no. 5, p. 53.

Richmond, J.F., 1960, Geology of the San Bernardino Mountains north of Big Bear Lake, California, with a tabulated list of mines and mineral deposits by C.H. Gray, Jr.: California Division of Mines Special Report 65, 68 p.

Sadler, P.M., 1982, Geologic map of the Fawnskin 7.5' quadrangle: California Division of Mines and Geology Open File Report OFR 82-18 S.F., Plate F, scale 1:24,000.

Tyler, D.L., 1979, The Cordilleran miogeosyncline and Sevier(?) orogeny in southern California, in Newman, G.W., and Goode, H.D., eds., Basin and Range symposium and Great Basin field conference: Denver, Colorado, Rocky Mountain Association of Geologists and Utah Geological Association, p. 75-80.

Hidalgo 7.5' Quadrangle

Dibblee, T.W., Jr., 1967, Geologic map of the Emerson Lake quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-490, scale 1:62,500.

Joshua Tree North 7.5' Quadrangle

Dibblee, T.W., Jr., 1967, Geologic map of the Joshua Tree quadrangle, San Bernardino and Riverside Counties, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-516, scale 1:62,500.

Dibblee, T.W., Jr., 1967, Geologic map of the Emerson Lake quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-490, scale 1:62,500.

Joshua Tree South 7.5' Quadrangles

Dibblee, T.W., Jr., 1967, Geologic map of the Emerson Lake quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-490, scale 1:62,500.

Landers 7.5' Quadrangle

Sowers, J.M., Unruh, J.R., Lettis, W.R., and Rubin, T.D., 1994, Quaternary geologic map of the Landers quadrangle, San Bernardino County, California, in Sowers, J.M., Unruh, J.R., Lettis, W.R., and Rubin, T.D., 1994, Relationship of the Kickapoo fault to the Johnson Valley and Homestead faults, San Bernardino County, California: Bulletin of the Seismological Society of America, v. 84, p. 528-536.

Dibblee, T.W., Jr., 1967, Geologic map of the Emerson Lake quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-490, scale 1:62,500.

Melville Lake 7.5' Quadrangle

Dibblee, T.W., Jr., 1967, Geologic map of the Old Woman Springs quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-518, scale 1:62,500.

Moonridge 7.5' Quadrangle

Sadler, P.M., 1982, Geologic map of the Moonridge 7.5' quadrangle: California Division of Mines and Geology Open File Report OFR 82-18 S.F., Plate H, scale 1:24,000.

Dibblee, T.W., Jr., 1964, Geologic map of the San Gorgonio Mountain quadrangle, San Bernardino and Riverside Counties, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-431, scale 1:62,500.

Powell, R.E., Matti, J.C., Cox, B.F., Oliver, H.W., Wagini, Alexander, and Campbell, H.W., 1983, Mineral resource potential of the Sugarloaf roadless area, San Bernardino County, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-1606-A, scale 1:24,000.

Morongo Valley 7.5' Quadrangle

Dibblee, T.W., Jr., 1967, Geologic map of the Morongo Valley quadrangle, San Bernardino and Riverside Counties, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-517, scale 1:62,500.

Old Woman Springs 7.5' Quadrangle

Sadler, P.M., 1982, Geologic map of the Old Woman Springs 7.5' quadrangle: California Division of Mines and Geology Open File Report OFR 82-18 S.F., Plate K, scale 1:24,000.

Dibblee, T.W., Jr., 1967, Geologic map of the Old Woman Springs quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-518, scale 1:62,500.

Onyx Peak 7.5' Quadrangle

Sadler, P.M., 1982, Geologic map of the Onyx Peak 7.5' quadrangle: California Division of Mines and Geology Open File Report OFR 82-18 S.F., Plate G, scale 1:24,000.

Dibblee, T.W., Jr., 1964, Geologic map of the San Gorgonio Mountain quadrangle, San Bernardino and Riverside Counties, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-431, scale 1:62,500.

Powell, R.E., Matti, J.C., Cox, B.F., Oliver, H.W., Wagini, Alexander, and Campbell, H.W., 1983, Mineral resource potential of the Sugarloaf roadless area, San Bernardino County, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-1606-A, scale 1:24,000.

Rattlesnake Canyon 7.5' Quadrangle

Sadler, P.M., 1982, Geologic map of the Rattlesnake Canyon 7.5' quadrangle: California Division of Mines and Geology Open File Report OFR 82-18 S.F., Plate B, scale 1:24,000.

Dibblee, T.W., Jr., 1967, Geologic map of the Old Woman Springs quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-518, scale 1:62,500.

Matti, J.C., Cox, B.F., Rodriguez, E.A., Obi, C.M., Powell, R.E., Hinkle, M.E., Griscom, Andrew, Sabine, Charles, and Cwick, G.J., 1982, Mineral resource potential map of the Bighorn Mountains Wilderness Study Area (CDCA-217), San Bernardino County, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-1493-A, scale 1:48,000.

San Gorgonio Mountain 7.5' Quadrangle

Dibblee, T.W., Jr., 1967, Geologic map of the Emerson Lake quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-490, scale 1:62,500.

Twentynine Palms 7.5' Quadrangle

Click to see: Geology of the Twentynine Palms Marine Corps Air/Ground Combat Center and Vicinity

Dibblee, T.W., Jr., 1968, Geologic map of the Twentynine Palms quadrangle, San Bernardino and Riverside Counties, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-561, scale 1:62,500.

Yucca Valley North 7.5' Quadrangle

Dibblee, T.W., Jr., 1967, Geologic map of the Joshua Tree quadrangle, San Bernardino and Riverside Counties, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-516, scale 1:62,500.


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