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 Cannon River flows 112 miles (180 km) from Lake Tetonka near Waterville, Minnesota to Red Wing in the U.S. state of Minnesota, where it joins the Mississippi River. It drains a watershed approximately 1460 square miles (3,780 kmÂ²) in size. The Cannon River has few rapids, but some can be difficult (Class II).