Leaving AS4 you'll be greeted with some wide path fire roads. Watch for the markers though. It's easy to want to continue on the wide paths. You'll find lovely mixed surface single track with fern and rocks. Some soft pine mixed in late. Mind your steps on the descent from Crow Hill Ledges and don't get too close to the edge. Look out below, there are rock climbers in this section. Read up on some history at Redemption Rock and cruise into AS6 in the parking lot of Wachusett Mountain.