Overall this trail network is not epic but is fun and convenient. For the amount of woods in Windham there aren't a lot of MTB trails,so I was glad to find these. Mostly they are hiking trails (double track) and snow mobile trails (fire road) but there is definitely some single track too. These trails don't appear to be maintained by bikers so some of the single track is kind of overgrown. Like I said not epic but decent and the only MTB trails I've found this far out.
I think if more of us ride these then they'll get really good.
There are multiple entrances to this network. The best is probably to park at Portland water district office at the junction of 237 and 35. There is a trail just behind the parking area. Alternatively you can park at Gambo falls in south Windham and ride 3.8 miles on the paved bike path to get there. Lastly you can park at the rec area just east of the 35/114 junction. <br />Be sure to fill out a free land use permit at one of the kiosks.
http://www.singletracks.com/item.php?c=1&i=6387