Look in to the Western Maine Mountain Jeepers club. It is based out of Bethel, not too far from you.
They have access to plenty of trails on private property for club trail rides. I have a place in Stoneham and joined this year. Many members travel a bit for the rides, and it is worth it.
Mine:2003 TJ Rubicon Flame red, 5 speed, 4.88 gears, rear Detriot locker, RE 3.5" SF, 1" BL, 1" ML, MT/Rs 35" x 12.5 on Soft 8s, PSC Rocker Knockers, Warn 8274, Warn 620 flood lights, GP Fab rear bumper / tire carrier, MCE 4.5" fenders
Hers:2009 Wrangler X six speed soft top, one option = AC, Rubicon Tires and wheels