Any in Miles Standish SF?
I asked around many years ago, and people who had investigated the place said it was one big thicket. But who knows, a few decades can make a difference where vegetation is concerned.
What would actually make a difference is 2 to 3 feet of snow with an unbreakable crust on top and then just enough warm weather to give good traction. As it is, well it looked like a place where if they said sure, use it, just you have to stay on the trails, you'd readily agree.
Lots and lots of blueberries from what I recall, except right by the ponds and in the campgrounds. We were last there about 10 years ago. I stayed on trails when I ran there.
That's a shame. The terrain, aside from vegetation, configuration, and location are great.