Big Muddy

From USFWS National Wildlife Refuge System:

Did you know Big Muddy National Fish & Wildlife Refuge (http://go.usa.gov/fc7e) derives its name from the Missouri River? The nation’s longest river is called the Big Muddy because of its tremendous sediment load. Channelization for navigation, irrigation and flood control has lessened that load, but an old saying about the Missouri was, “It’s too thick to drink and too thin to plow.” More about the refuge: http://go.usa.gov/fcAH