Northern Virginia residents participated in the Annual Potomac River Watershed Cleanup on Saturday, April 5, sponsored by the Alice Ferguson Foundation. Last year, this Potomac watershed cleanup through the region collected over 300 tons of trash. The Great Falls Citizens Association organized over a dozen volunteers this year to clean up along Difficult Run stream and worked for over three hours to pull out debris along the trails and woods along the stream, which flows into the Potomac River. Many of the volunteers were high school students.