TY - RPRT TI - Water Resources Data for Colorado, 1966; Part 1: Surface Water Records AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1967 DO - 10.3133/wdrco661 UR - https://pubs.usgs.gov/publication/wdrCO661 ID - wdrCO661 ER -