Big Muddy National Fish and Wildlife Refuge Big Muddy National Fish and Wildlife Refuge The Big Muddy National Fish and Wildlife Refuge was established in 1994, and has grown to over . Like pearls on a string, these acres are spread out as individual units along the Missouri River between Kansas City and St. Louis. These pearls of habitat benefit floodplain-dependent fish and wildlife species. The Big Muddy Refuge is planning to grow to by buying land from willing sellers who want to see their properties set aside for the benefit of wildlife and the enjoyment of all. The pre-development Missouri River as documented by Lewis and
Muddy River (Washington) gauge. Muddy River (Washington) The Muddy River is a stream, about long, southeast of Mount St. Helens in the U.S. state of Washington. The Muddy River flows south–southeast and joins the Lewis River just above the Swift Reservoir. The Lewis River flows west and is a tributary to the Columbia River. The east flank of Mount St. Helens is within the watershed of Muddy Creek. During the 1980 eruption of Mount St. Helens, lahars (volcanically-induced mud and debris flows) swept through its channel. About of stream channels around the volcano were affected by lahars. The United States Forest Service maintains