TY - RPRT TI - Analyses of rock and stream-sediment samples, Mount Zirkel Wilderness and Northern Park Range vicinity, Jackson and Routt counties, Colorado AU - George L. Snyder AU - R.T. Hopkins AU - J. A. Domenico AU - J. G. Frisken AU - J. Mitchell PY - 1981 DO - 10.3133/ofr81186 UR - https://pubs.usgs.gov/publication/ofr81186 ID - ofr81186 ER -