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 River Rollers Association drew in a capacity crowd of eight hundred fans. In September 2012, Muddy River competed at the Roller Derby Association of Canada's first Atlantic Canada Roller Derby Championship, beating the Fog City Rollers to win the tournament and qualify for the following year's national championship. Muddy River was accepted as a member of the Women's Flat Track Derby Association Apprentice Program in April 2013, and became a full WFTDA member in October 2014. Muddy River received their first ranking as a WFTDA member with the May 31, 2015 rankings update, debuting at 99 overall. Muddy River Rollers The Muddy