TY - RPRT TI - Geologic map of Gunnison Gorge National Conservation Area, Delta and Montrose Counties, Colorado AU - Karl S. Kellogg AU - Wallace R. Hansen AU - Karen S. Tucker AU - D. Paco VanSistine PY - 2004 DO - 10.3133/sim2825 UR - https://pubs.usgs.gov/publication/sim2825 ID - sim2825 ER -