The 27th annual Potomac River Watershed Cleanup is scheduled for 9 a.m. to noon tomorrow at more than 100 sites in the Washington area.

Most of the cleanup sites are in Washington, D.C., Northern Virginia, and Montgomery and Prince George’s County, Md. To find a nearby site where you can volunteer to help with the annual cleanup, go to the Alice Ferguson Foundation’s website. A smaller number of cleanups, also listed on the website, are scheduled for later this month.

Last year, according to the foundation, which organizes the annual cleanup, 14,766 volunteers removed 576,000 pounds of trash from the Potomac River watershed. The watershed covers 14,670 square miles in the District of Columbia, Virginia, Maryland, West Virginia, and Pennsylvania.

─Wayne Savage