TY - RPRT TI - Maps showing locations of holes drilled in 1948 to 1956 by U.S. Geological Survey, Slick Rock district, San Miguel County, Colorado AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1970 DO - 10.3133/ofr70348 UR - https://pubs.usgs.gov/publication/ofr70348 ID - ofr70348 ER -