Holmes Run is a main tributary in the Cameron Run watershed, which includes parts of Falls Church, Fairfax County and the City of Alexandria and drains into the Potomac River. Visit one of the interactive maps below, click on the disclaimer, and then enter your address to see where you are in your watershed!
Tip: If accessing map on a mobile device, rotate screen to horizontal for best viewing.
Learn more about watersheds in Fairfax County and City of Alexandria.