TY - RPRT TI - Land use and land cover and associated maps for Cheyenne, Wyoming, Nebraska, Colorado AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1981 DO - 10.3133/ofr8115 UR - https://pubs.usgs.gov/publication/ofr8115 ID - ofr8115 ER -