@misc{indiciae8e314b51f16b, title = {Land use and land cover and associated maps for Cheyenne, Wyoming, Nebraska, Colorado}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1981}, doi = {10.3133/ofr8115}, url = {https://pubs.usgs.gov/publication/ofr8115}, note = {Source identifier: ofr8115} }