The Stone Mill 50 mile trail race traverses 47 miles of single track (there are three road miles) managed by Montgomery County Parks, State of Maryland and the National Parks Service. The Stone Mill itself is part of the...
The Stone Mill 50 mile trail race traverses 47 miles of single track (there are three road miles) managed by Montgomery County Parks, State of Maryland and the National Parks Service. The Stone Mill itself is part of the...