Water Supply Paper 2400 (National Water Summary 1990-91 - Stream Water Quality; Wyoming pp.569-576) was produced by the United States Geological Survey. For more infomation contact: District Chief, U.S. Geological Survey 2617 E. Lincolnway, Suite B Cheyenne, WY 82001 Or order on-line at: http://greenwood.cr.usgs.gov/wsp.html