Tons of clubs in CT and surrounding region. Check out Northeast Offroad Vehicle Alliance, or NOVA 4x4 for short.
And Northeast Association of 4WD clubs.
These are larger Clubs of clubs. You will notice many of the same clubs in both organizations. In the NE, all wheeling, or 90% of it is on private land and clubs have relationships with landowners.
Good luck. Many choices. Check out ECOJOCS, JT4x4, Easter4Wheelers....to name just a few.