Reviewed by: Teej , from Hudson, MA

Summary:
Been riding here for 3 years now. Some of the vets I've met on the trails still show me new stuff to this day. I love this place. First, because it is close. Second, it is a quick, lung bursting workout (read-climbing). Third, it is as challenging as you want to make it.
I like to start in the lower turnoff parking lot on Lynden St. There is only enough room for 2-3 cars here (vs 5-10 cars at the true TH on Greeen Street). I like to start here so I get all the climbing in at first and then I can downhill back to my truck for a cool down.
Recommended areas are: super technical singletrack around the lower pond which you can preceed with a fun switchback run from the top (I think it is the Green trail), the downhill from the Eastern most scenic viewpoint and various stretches of singletrack in the park.
Watch out for horsecrap in the western part (and they think cyclists are bad), and the mosquitos were out in force last night.
Ride on

Recommended Route:
Lower parking lot on Lynden St. Climb steep incline to right after bolders at TH. Turn to right after first V in path and left at the next V.

Other recommended trails in the same area:
Stow Town Forest, Nam, Calihan, etc.

Reviewed by: Kaparzo , from Sudbury, MA, USA

Summary:
These trails were a great suprise. Not unlike great hill in acton, but much, much larger and not as rocky but still technical. tons of trails, 95% singletrack and I still have not been everywhere. The climbing is not as bad as other reviewers have been saying. It is not real steep but because of the roots and exposed rock faces, "slippery when wet". The blue trail has some sweet switchbacks, real ones, mind you. The red loop trail from the TH is a nice warmup. It is also not quite as technical as others ahve been saying but defintly more than callahan. There is a viewpoint off taylor trail that has a skinny rut trail off of it to the right. While it is fun and kinda steep, be sure to come back up it b/c the trails (if there were any) have been obliterated by construction. on the other hand, green street is a nice climb on the road if your into that kind of stuff. The stream crossings are also pretty good, definetly the best I have ridden around here. not too muddy at all

Recommended Route:
I rode right up rt. 62 through Hudson center and through Berlin center until taking a right onto linden street. I then took a right up Ball Hill Rd to Smith Rd. The lot is on the left. 14 miles of sweet sailing, ball hill is a good up hill as is green street coming in the opposite direction. This is a great place to explore b/c there are little junctions and long singltrack sections. When in doubt, keep goign up.

Other recommended trails in the same area:
Callahan