Went up to the Rivers Edge Campground on Saturday with my buddy who has a Suzuki 750 King Quad. We were going to go up there for 3 days and ride pretty much the whole time. They claim to have 25 miles of trails, 2 moto x tracks and a mudpit. It was really fun for about a half a day. The first trail we road was Trail 3 (they consider it the extreme trail and recommend winches) The 700xx and Kingquad didn't really have any problems on it, never winched and the mud holes are just water holes with solid ground on the bottom.
The first time we did it it took about 45 minutes b/c we went nice and slow, then at the end of the day we hit trail 3 again and did it in about 10 minutes. My buddy's King quad has a mileage odometer on it and it was reading about 10 miles after we had hit every single trail and road the track (which was filled with water) and hit the mud pit which was again just a water hole.
I'd go up there again for a day at only 15 bucks, but neither of us could justify spending the night and riding the same trails over and over again. It got pretty boring really fast. They're working on more trails on another 160 acres of land which might have some mud but they looked really wide and not challenging.
My Tires and sprocket are supposed to come in today, so hopefully I'll have pictures and a product review on them over the weekend. We're supposed to go riding in southern MA on sunday if the weather holds up and there's a decent amount of mud and sandpits to hit.