West Falls Church is a census-designated place (CDP) in Fairfax County, Virginia, United States.The population was 29,207 at the 2010 census. Before 2010, West Falls Church was officially named Jefferson.est Falls Church is a census-designated place (CDP) in Fairfax County, Virginia, United States. The population was 29,207 at the 2010 census.
Watershed at a Glance. The Cannon River watershed is located south of the Twin Cities and encompasses areas of Dakota, Goodhue, Le Sueur, Steele, Rice and Waseca counties. The watershed drains approximately 1,460 square miles through two main channels, the Cannon and Straight Rivers, to the Mississippi at Red Wing.
The Mad River is located partially in Oswego, Jefferson and Lewis counties. There are 6.6 miles of Public Fishing Rights (PFR's) along this large, tree lined stream. The Mad River section in Lewis County is stocked annually with around 400 brook trout. Wild brook trout can be found in the rest of the river.