The Hopper Brook Loop and Haley Farm Trail begin at the end of Hopper Road. Two miles from the intersection of Hopper Road with Route 43 is a designated parking area. Farming still continues on the former Haley and Greene farms purchased by the Commonwealth of Massachusetts to provide public access to Mt. Greylock. The Money Brook and Hopper Trails to the summit also originate here. All trails begin at the road's end, through the gates.

Hopper Brook Loop - Easy, ¾ mile, 45 minutes, Hiking, Snowshoeing and Skiing. Begins at the end of the north hayfield, going in on the left along a stone wall. The trail goes downhill through an old pasture to Hopper Brook. The grassy meadow is an inviting resting or picnic area. The trail joins the road near the campsites. To complete the loop, turn uphill on the road.

Haley Farm Trail - Strenuous, 1.5 mile, 2 ½ hours, Hiking. Crosses a pasture and enters a woods area rich with spring wildflowers. The trail climbs steadily to its end at Stony Ledge, offering panoramic views of the Hopper and the Greylock Range. Walk down Sperry Road to where the Hopper Trail crosses for a less steep route back into the Hopper.