TY - RPRT TI - Mineral resources of the Mount Zirkel Wilderness and northern Park Range vicinity, Jackson and Routt counties, Colorado AU - George L. Snyder AU - Lowell L. Patten AU - Jeffrey J. Daniels PY - 1987 DO - 10.3133/b1554 UR - https://pubs.usgs.gov/publication/b1554 ID - b1554 ER -