April 10, 2021 @ 10:00 am - 12:00 pm Extreme Cleanup – OpenSiteRCC Klingle Valley Trail 3036 Klingle Rd NW, Washington, DC, United States Casey Chroust
April 18, 2020 @ 10:00 am - 12:00 pm Extreme Cleanup – OpenSite11 Klingle Valley Trail 3036 Klingle Rd NW, Washington, DC, United States
April 18, 2020 @ 10:00 am - 12:00 pm Extreme Cleanup – Klingle Valley Klingle Valley Trail 3036 Klingle Rd NW, Washington, DC, United States Site Leader: Martin Rundle