TY - RPRT TI - Photogeologic maps of the Aneth 1, 2, 3, 4, 7, and 8 quadrangles, Utah and Colorado AU - Robert J. Hackman PY - 1952 DO - 10.3133/ofr5258 UR - https://pubs.usgs.gov/publication/ofr5258 ID - ofr5258 ER -