The Muddy River begins in the northwest corner of Moapa Valley and is about 32 miles long. Flow in the river is from numerous seeps and springs in the Muddy River Springs area. The river flows in a southeast direction and discharges into Lake Mead. A tributary of the river, Meadow Valley Wash, joins the river near Glendale, Nev. The Muddy River is part of the Colorado River Basin (hydrographic region 13).
The Muddy River Springs area, otherwise known as the Warm Springs area, contains six major spring groups: Cardy Lamb, Baldwin, Apcar, Muddy, pederson, and plummer.
USGS Nevada Water Science Center maintains several real-time streamflow gages on the Muddy River.
DataReal-Time Streamflow :: Daily Values :: Peak-Flow :: Water Quality
Beck, D.A., and Wilson, J.W., 2006, Synoptic discharge, water-property, and pH measurements for Muddy River Springs area and Muddy River, Nevada, February 7, 2001: U.S. Geological Survey Scientific Investigations Report 2006-5237, 12 p.
Eakin, T.E., and Moore, D.O., 1964, Uniformity of discharge of Muddy River Springs, southeastern Nevada, and relation to interbasin movement of groundwater, in Geological Survey Research 1964: U.S. Geological Survey professional paper 501-D, p. 171-176.
Eakin, T.E., 1964, Ground-water appraisal of Coyote Spring and Kane Springs Valleys and Muddy River Springs area, Lincoln and Clark Counties, Nevada: Nevada Department of Conservation and Natural Resources, Ground-Water Resources - Reconnaissance Report 25, 40 p.
Moapa Valley National Wildlife Refuge
The Moapa National Wildlife Refuge is on 117 acres in Moapa Valley, Nev. This refuge was created by the U.S. Fish & Wildlife Service to protect the habitat of the endangered Moapa Dace, a tiny fish that is found only in the warm springs that provide flow to the Muddy River. Additional information about the Moapa Valley National Wildife Refuge can be found on the U.S. Fish & Wildife Service website: http://www.fws.gov/desertcomplex/moapavalley/