STERLING Loudoun’s eastern-most region is a bustling tech-centered urban area of leafy residential communities, upscale shopping and lively entertainment complexes – ropes courses, go-karting tracks, axe throwing bars and the like. Some “Old Loudoun” remains, notably the scenic Washington & Old Dominion Trail, Claude Moore Park with its farm museum, and Algonkian Regional Park on the Potomac River, the rustic riverfront cabins available for rent. Photo: Cascades Overlook Scan for a video about Sterling 9 | Official Visitors Guide