Here's a link to the trail map: http://parksandrec.yorkmaine.org/trail%20map%201.pdf
There are a few trailheads from which to enter the network, but if you park at the bottom of the hill that leads up to the mountain summit, there's easy access to the Ring Trail. I rode this trail a lot a few years ago, and depending on the season, it can be very technical at times, especially on some of the downhills (see HORSE TRAIL.) Though not in the listed trail map, there are some trails to the south of the mountain that are very technical, and make for an aggressive, experienced ride. Overall, the trails are well-maintained, but be prepared for some leg burn going up and down the three "summits" of Mt. Aggie. Can't believe I'm the first to write a review on it!!! Wish I had pictures...I'll get some next time I'm up in the New England area.