U.S. Fish and Wildlife Service. 1988. Procedures Manual of the Long Term Resource Monitoring Program for the Upper Mississippi River System. Environmental Management Technical Center, Onalaska, Wisconsin. EMTC 88-03. 216 pp. (NTIS # PB94-145885) ABSTRACT This manual describes why, how, when, and where data are collected under the Long Term Resource Monitoring Program for the Upper Mississippi River System KEYWORDS monitoring, water quality, sediment, resource trend analysis, Mississippi River, Upper Mississippi River System, Environmental Management Program, Long Term Resource Monitoring Program