Hillsboro Gap

Hillsboro Gap

Hillsboro Gap is a water gap in the Short Hill Mountain formed by the North Fork of the Catoctin Creek in Loudoun County, Virginia. The gap derives its name from the town of Hillsboro, which is nestled in the gap. Virginia State Route 9 passes through the gap in the town.

The gap poses a substantial barrier to the widening of the congested Route 9 as the historic town completely fills the gap and as such Route 9 would have to be routed around or over the Short Hill Mountain to be widened.