times, and was last updated on March 25th, 2013
Copyright 2013 Thunderbolt Ski Runners
This site has been visited
Contact the webmaster with questions or comments.
|Welcome to the Thunderbolt Ski Trail Virtual Visitor's Center. Here you
can find weekly updates on trail conditions, submit your trip or trail
report, get the latest Thunderbolt weather forecast, and download trail
maps and directions you can print and take with you on your next trip.
Trail Conditions and Trip Reports
- If you have been on the Thunderbolt and would like to
report trail conditions, we'd love to hear from you.
- Please e-mail us and we'll post your trail report.
Directions to Thunderbolt Trailhead
- Contains directions into Adams
and to the Greyock Glen from Rte.
8 (North or South) and Rte. 116
- Opens a rich text format Word file
on your computer that you can
print and take with you
|What to Expect
- The ascent: about 2 hours if you are in shape
- The descent: anywhere from 5 to 30 minutes
- Terrain: the Thunderbolt is often described as
intermediate terrain with expert conditions.
- It is steep in places
- It is narrow in places
- It is steep AND narrow in places
- Conditions: conditions can vary widely from deep
fresh powder, to hard packed powder, to icy moguls,
to spring corn, to cream cheese, to thin cover and
with exposed stumps, rocks, and other hazards that'll
just rip your ACL in half. The varying conditions are
mostly what make the Thunderbolt an expert trail.
- Weather: obviously this will vary from day to day.
But even on a given day, the local weather conditions
can vary widely. It can be sunny and mild on the
lower half of the Thunderbolt, and freezing cold with
blowing snow on the upper mountain.
|What to Bring
- Skinning up Mt. Greylock is probably the most
preferred method. Obviously not everyone has the
gear to do this. Hiking up on snowshoes is a good
alternative. Boot packing is also a way to get up. If
you must boot pack, it is recommended that you stay
off the trail and keep to one side.
- Dress in layers, as you will probably work up a sweat
- A good map will help. There are many trails to the
summit of Greylock...some are named, others are
not. See below for directions to Adams and to the
- Food and water are always good things to pack
along. There is a 4 sided shelter on the summit that
often has a fire going inside. It's a nice place to have
a snack and rehydrate before your run down.
- Course Record: 2 min. 8 sec.,
set by Per Klippgen in the
1948 Eastern Downhill
- Exposure: North, East, and
- Length: 1.6 miles (racing),
2.0 miles (total)
- Summit Elevation: 3,491 ft.
- Finish Line Elevation: 1,450 ft.
- Vertical Drop: 2,050 ft.
- Average Grade: 16 degrees
- Steepest Grade: 35 degrees
- Narrowest Point: 15 feet at
- Widest Point: 75 feet at the