Find North Cascades geologic maps

Considerable field work has been completed on the Twisp 1:100,000 quadrangle but a map of the entire quadrangle is not yet available. The following list of references may be of use to the interested reader.

Cater, F.W. and Crowder, D.F., 1967, Geologic map of the Holden quadrangle, Snohomish and Chelan Counties, Washington, U.S. Geological Survey, GQ 646, scale 1:62,500 .

Cater, F. W. and Wright, T. L., 1967, Geologic map of the Lucerne quadrangle, Chelan County, Washington: U.S. Geological Survey Geological Geologic Quadrangle Map, GQ 647, scale 1:62,500

Dragovich, J. D., and Norman, D. K., 1995, Geologic map of the west half of the Twisp 1:100,000 quadrangle, Washington: Washington Division of Geology and Earth Resources Open File Report 95-3.

Dragovich, J., D., Norman, D.K., Haugerud, R.A. And Miller, R.B., 1997, Geologic map of the Gilbert 7.5 quadrangle, Chelan and Okanogan counties, Washington, Washington Division of Geology and Earth Resources, Washington (State) Geologic Map GM-46, scale 1:24,000

Haugerud, R.A., Brown, E., H., Tabor, R.W., Kriens, B.J. and McGroder, M.F., 1994, Late Cretaceous and early Tertiary orogeny in the North Cascades, in D. A. Swanson and R. A. Haugerud, Geologic field trips in the Pacific Northwest: Published in conjunction with the Geological Society of America Annual Meeting in Seattle, October 24-27 by the Department of Geological Sciences, University of Washington, Seattle, Washingtonp, v. 2, p. 2E1-2E51

Haugerud, R.A., Tabor, R.W. and Mahoney, B.J., 2002, Stratigraphic record of Cretaceous tectonics in the Methow block, North Cascades, Washington (abs.): Geological Society of America Abstracts with Programs, v. 34, n. 5, p. A-95

Mahoney, J.B., Haugerud, R.A., Friedman, R.M. and Tabor, R.W., 2002, Late Jurassic terrane linkages in the North Cascades: Newby Group is Quesnellia?(abs.): Geological Society of America Abstracts with Programs, v. 34, n. 5, p. A-95

Miller, R. B., and Bowring, S. A., 1990, Structure and chronology of the Oval Peak batholith and adjacent rocks: Implications for the Ross Lake fault zone, North Cascades, Washington: Geological Society of America Bulletin, v. 102, p. 1361-1377.

Miller, R. B., Haugerud, R. A., Murphy, F., and Nicholson, L. S., 1994, Tectonostratigraphic framework of the northeastern Cascades: Washington Division of Geology and Earth Resources Bulletin 80, p. 73-92.