@misc{indiciae519d9945858e, title = {Development of an 11- and 14-digit hydrologic unit boundary layer for the Green River Basin using a Geographic Information System}, author = {Hugh L. Nelson and Aimee C. Downs and Steve D. Crabtree and Doug H. Hines}, year = {1997}, doi = {10.3133/ofr97619}, url = {https://pubs.usgs.gov/publication/ofr97619}, note = {Source identifier: ofr97619} }