The Civilian Conservation Corps built Mount Greylock’s famous Thunderbolt Trail in 1934, when skiing was taking off as a popular recreational activity. This challenging ski run drops more than 2,000 vertical feet in just under two miles, from the summit to the base.

The trail was rated a Class A expert run and hosted many Massachusetts downhill ski championship races, including the premier United States Eastern Amateur Ski Association Championships in 1938 and 1940. Today, backcountry skiers looking for a unique physical challenge use the trail at their own risk. It is also used by hikers and a portion of it overlaps the Appalachian Trail.

Please note: The Mount Greylock Scenic Byway is closed to vehicles from mid-October through June. Hiking, snowshoeing, cross-country skiing and snowmobiling are still permitted.

Mount Greylock State Reservation
30 Rockwell Road
Lanesborough, MA 01237

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