USGS Cooperative Research Unit Corner Tight Lines: Evaluating Rainbow Trout Fishing in Oklahoma USGS researchers at the Oklahoma Cooperative Fish and Wildlife Research Unit, biologists at the Oklahoma Department of Wildlife Conservation (ODWC), and researchers at Oklahoma State University are leading a study on rainbow trout (hereafter, trout) fishing at the lower Mountain Fork River (LMFR) below Broken Bow Dam in southeastern Oklahoma. This location is one of two year-round rainbow trout fisheries in the state and the only one with potential for a wild rainbow trout fishery. Read The Article