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1.4 miles
Distance
-597 ft
Descent
00:04:21
Avg time
-598 ft
Altitude change
625 ft
Altitude min
1,224 ft
Altitude max
1,224 ft
Altitude start
627 ft
Altitude end
-7.8%
Grade
-25%
Grade max
0.5%
Grade min
1 mile
Distance down
443 ft
Distance flat
00:04:21
Avg time
The Gronk Details
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Activities
- Mountain Bike
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Riding AreaThunder Mountain Bike Park
Charlemont, Massachusetts -
Difficulty Rating
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Voted DifficultyBlue (2 votes)
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Local Popularity100 in Mountain Biking
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Global Ranking#975 in Mountain Biking
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Trail TypeDoubletrack
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Bike TypeDH, AM, DJ
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DirectionDownhill OnlyPopular Direction Shown
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Physical RatingModerate
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eBike Allowed
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TTFs on TrailBerm, Jump, Roller Coaster
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Land OwnerJon Schaefer
Easiest jump line at Thunder Mountain, no gaps and everything is rollable. A great trail to build confidence on or to take a break from the more intense riding.
Most of this trail is skiable in the winter, IF snow conditions are firm / fast. You'll have to push for some of it, and snowboarders will find this to be a real chore in spots ... but you can have a good time on this if conditions are right. You might want to cut some of the switchbacks off by skiing through the trees to carry speed / momentum. On snow the two best parts of this trail is the series of 3 tight berms near the beginning, and the final jump line near the end.
Bike Park
Local Trail Association
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Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 21 rides
- 28 miles average
6 Months
- 89 rides
- 29 miles avg distance
All
- 1,702 rides
- Last: Jun 20, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
The Gronk Trail Reports
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Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
Trail Flow (Ridden Direction)
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
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- < 6 months
- > 6 months
Trail Ridden Direction
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- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
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Directions to the-gronk trailhead
(42.612810, -72.875250)
Photos
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Nearby Trails
- Trillium 151 ft
- Billy Badger 289 ft
- Back Of The Shack 2,382 ft
- Too Easy 2,625 ft
- The Schist 2,828 ft
Thunder Mountain Bike Park
- By Jdam149 & contributors
- #34044 - 9,308 views
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Frequently Asked Questions About The Gronk
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Where is The Gronk located?
The Gronk is located in Thunder Mountain Bike Park, Charlemont, Massachusetts, United States. It is part of the Thunder Mountain Bike Park trail network. The trailhead is located at coordinates 42.61281, -72.87525.
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How hard is The Gronk?
The Gronk is rated as Blue difficulty. The physical rating is Moderate. The average grade is 7.8%.
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What is the elevation gain for The Gronk?
The trail has 597 ft of elevation descent. The elevation ranges from 625 ft to 1,224 ft.
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Is The Gronk a point to point trail?
Yes, The Gronk is a point to point trail. The direction is Downhill Only. The trail type is doubletrack.
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