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SUBSURFACE WATERS by Harley L Young U S Geological Survey
AQUATIC ENVIRONMENTS by Laurence R Jahn Wildlife Management
SOIL SILT AND SEDIMENT by A W Kowitz Soil Conservation
acres activities agencies air pollution aquatic environments areas Chippewa River conservationists cooperative program County croplands crossroads Department of Natural drainage draining erosion control farm feedlot fishing floodplains floods Food and Fiber future Geological and Natural ground water recharge ground-water aquifers highway human hydrologic impact Improvement increase industrial irrigation Lake Winnebago lakes and streams landowners leisure Lewis Mumford low flow maintain major meeting million Natural History Survey Natural Resources North Dakota outdoor recreation Paleozoic percent planning prairie potholes Precambrian production resource management River Basin runoff sandstone shallow marshes silt and sediment soil and water Soil Conservation soil loss solve species streamflow streams and lakes studies surface-water terraces U. S. Geological Survey University of Wisconsin urban Utilization vegetation Vilas County wastes Water Bank water conservation water in Wisconsin water quality watershed wetlands wildlife Wisconsin's surface waters Wytham Woods