There is arguably no better urban trail running and mountain biking network in the northeast than the Oaklands & Henderson-Swasey Town Forests. Located just minutes from downtown Exeter, NH these trails are better known as Fort Rock. If it's technical trail running you're looking for...search no further. This may be the most technical trail race anywhere in New England!
When: June (This trail race takes place in June each year. Visit race website link below for details.)
Location: New Hampshire, United States Nearby City: Portsmouth