Four Mile Run Dog Park

About the Park

Four Mile Run forms Alexandria's northern border with Arlington, and the dog park bearing its name sits in the 22305 zip on that edge of the city. It's free, public, and designated off-leash, the three facts this listing confirms. Fencing, hours, surface, and amenities go unmentioned, so scout the layout before you unclip, especially near the stream corridor, where an unfenced boundary would matter. The Four Mile Run Trail draws steady bike and foot traffic through this area, connecting toward the Potomac and the regional trail network, which makes the park a logical pit stop mid-walk. In summer, humidity builds fast by late morning; in winter, the open corridor catches wind, so dress for it.