Publisher: USGS | Science Center: Upper Midwest Environmental Sciences Center (UMESC, LaCrosse) | Format: URL
www.umesc.usgs.gov — The Upper Mississippi River System has been highly modified for human use since the late 1800s. One effect of these modifications is that many side channels and backwaters are slowly filling with sediment. The Finger Lakes area of the Upper Mississippi River is a system of six connected backwater lakes just below Dam 4 near Kellogg, Minnesota. More...
Publisher: USGS | Science Center: Western Fisheries Research Center (WFRC, Seattle) | Format: URL
wfrc.usgs.gov — Scientists at the Columbia River Research Laboratory and the Upper Midwest Environmental Sciences Center are developing geographic information system, or GIS, based tools to assist managers with making decisions regarding the natural resources in and around the John Day Reservoir. The reservoir hosts many species of fish and wildlife, including More...
Publisher: USGS | Science Center: Western Fisheries Research Center (WFRC, Seattle) | Format: URL
wfrc.usgs.gov — There are approximately 500,000 abandoned mines in the western US. Collectively, these mines pollute rivers, streams, and western reservoirs with millions of tons of metals annually that degrade aquatic habitat and water used by humans for drinking, recreation, and irrigation. However, there is great potential in decreasing or eliminating the flow More...