Mud Lake Wildlife Management Area at is an Idaho wildlife management area in Jefferson County north of the town of Mud Lake. Land acquisition for the WMA began in 1940, and the most recent acquisition was in 1969. The WMA surrounds Mud Lake, which is only about deep. In March and early April up to 50,000 snow geese settle on the lake, along with other waterfowl, including trumpeter swans. References Protected areas established in 1940 Protected areas of Jefferson County, Idaho Wildlife management areas of Idaho 1940 establishments in Idaho