TY - RPRT TI - Preliminary geologic map and sections of the western part of the Gateway District, Mesa County, Colorado, and Grand County, Utah AU - L.J. Eicher AU - D. C. Hedlund AU - G.A. Miller PY - 1957 DO - 10.3133/mf122 UR - https://pubs.usgs.gov/publication/mf122 ID - mf122 ER -