' CNAPTERSEVEN literature cited
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<br />Piceance Creek Basin, Northwestern Colorado. U.S. Geological Survey Open-File Report 80-72.
<br />Sanfilippo, Joanne. 1998a. BLM Glenwood Springs Resource Area Archaeologist. Personal
<br />' communication with Robert Mutaw, Woodward-Clyde. December 16.
<br />Sanfilippo, Joanne. 19986. BLM Glenwood Springs Resource Area Archaeologist. Comments
<br />on Preliminary DEIS.
<br />SCS (U.S. Soil Conservation Service). 1982. Soil Survey of Rio Blanco County Area,
<br />Colorado. United States Department of Agriculture, Soil Conservation Service, U.S.
<br />Government Printing Office: 1982 - 355-084/1121.
<br />SCS. 1985. Soil Survey of Rifle Area, Colorado. United States Department of Agriculture, Soil
<br />Conservation Service.
<br />Selle, M. 1998. Personal communication between Michael Selle, BLM, White River Resource
<br />Area and R. Mutaw, Woodward-Clyde. September 21.
<br />Smith, G.I., C.L. Jones, W.C. Culberson, G.E. Erickson, and J.R. Dyni. 1973. Evaporites and
<br />Brines. U.S. Geological Survey Professional Paper 820. In: Steigers 1998.
<br />Spackman, S., B. Jennings, J. Coles, C. Dawson, M. Minton, A. Kratz, and C. Spurrier. 1997.
<br />Colorado Raze Plant Technical Guide. Prepared for the Bureau of Land Management, the U.S.
<br />' Forest Service, and the U.S. Fish and Wildlife Service by the Colorado Natural Heritage
<br />Program.
<br />Steigers (Steigers Corporation). 1997a. Letter from William D. Steigers, Steigers Corporation,
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<br />Steigers. 1998a. Wetland Delineation Report. Yankee Gulch Sodium Minerals Project
<br />Commercial Mine Operations. Prepazed for the U.S. Army Corps of Engineers. September.
<br />Steigers. 19986. Commercial Mine Plan Submitted by American Soda L.L.P. Pursuant to 43
<br />CFR 3592: Yankee Gulch Sodium Minerals Project. Steigers Corporation, Englewood,
<br />Colorado.
<br />Tiedeman, J.A., and C. Terwilliger, Jr. 1978. Phyto-Edaphic Classification of the Piceance
<br />Basin. Prepazed for the U.S. Department of Energy Under Contract No. E(11-1)-4018. Range
<br />Science Department, Colorado State University, Ft. Collins, CO. Range Science Department
<br />Series No. 31. June.
<br />Tweto, O. 1979. Geologic Map of Colorado (Scale 1:500,000). U.S. Department of Interior,
<br />Geological Survey, prepared in cooperation with the Geological Survey of Colorado. In:
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<br />Tweto, O. 1980. Summary of Laramide Orogeny in Colorado. Rocky Mountain Association of
<br />Geologists Guidebook (1980).
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