Catalog
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Supplementary cross sections and structure contour maps to the preliminary geologic map of the figure four spring quadrangle, Rio Blanco and Garfield Counties, Colorado
Johnson, Ronald C. (Ronald Carl), 1950-Reston, Va. : U.S. Geological Survey, 1978. -
Measured section of the Upper Cretaceous Mesaverde Formation and lower part of the lower Tertiary Formation, Rifle Gap, Garfield County, Colorado [microform]
Johnson, Ronald C. (Ronald Carl), 1950-[Reston, Va.?] : The Survey, [1982] -
Geologic history and hydrocarbon potential of Late Cretaceous-Age, low-permeability reservoirs, Piceance Basin, western Colorado
Johnson, Ronald C. (Ronald Carl), 1950-[Washington, D.C.] : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1989.
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