Big Muddy National Fish and Wildlife Refuge Clark was considerably different from today's river. The historic Missouri was a broad, slow-moving, shallow river with braided channels. These past river conditions created a haven for wildlife, which included vast floodplain forests of giant trees, marshes, and even wet prairies. Today's river is channelized. It is deeper and faster, and controlled by levees, dikes, and other containment structures. These controls make the river more navigable and the surrounding floodplain ideal for agriculture. The Big Muddy Refuge is allowing the Missouri River to be a river again, to enter its floodplain. This occurs during minor flood events. Management has created
Muddy Run (West Branch Susquehanna River tributary) Muddy Run (West Branch Susquehanna River tributary) Muddy Run is a tributary of the West Branch Susquehanna River in Northumberland County, Pennsylvania, in the United States. It is in length. The creek is several miles northeast of the community of Milton. Main land uses include agricultural land and forest. The area of the creek's watershed is 11.4 square miles, most of which is agricultural land. Muddy Run is entirely within Turbot Township. Most of the rock in the watershed is shale. The most common soil series is the Berks-Weikert-Bedington series. Muddy Run begins in a valley in eastern Turbot Township,