Welcome! The NET is a 215-mile long-distance hiking trail from Long Island Sound in CT to the MA/NH border.  Learn more.

Try out a new hike

  • Hermit's Castle Trail

    Climbers enjoying crisp fall temperatures on Hermit Mountain gneiss.
    Climbers enjoying crisp fall temperatures on Hermit Mountain gneiss.

    Erving

    4.50 miles

    +223 ft. / -352 ft.

    Loop hike to Erving Castle at Hermit Mountain.