This is a loop run using a section of the Appalachian Trail to climb to two rock outcroppings—Pulpit Rock and The Pinnacle—with impressive views of the surrounding Pennsylvania farm lands. Return to car via the trail alongside Furnace Creek.
Start at Hamburg Reservoir parking lot and follow the gravel road (blue blazed) uphill, looking for the white AT blazes crossing the road. Take the white blazed AT (aka the Valley Rim Trail) to the right. After crossing the creek, you'll see a blue blazed road heading off to the left—this will be your return route.
Take AT to the right heading gradually up the side of the mountain. Near the top it gets very rocky—look for the rocks in a step formation. At the top you'll be rewarded by the Pulpit overlook. The road from the bottom also comes up here to the Lehigh Observatory and is an optional path to the top.
From the Pulpit, you'll see the Pennsylvania farmland, but take a look to the ridge line on the left. The trail will follow that to the Pinnacle. After taking in the view, proceed along the ridgeline (gets very, very rock in sections) to an enormous rock cairn. Take the blue trail from the cairn to the Pinnacle. The views are spectacular. Note: the rocks here form caves.
Leave the Pinnacle and continue on the AT, a nice woods road with no rocks (yeah!) until you come to an open grassy area used as a helipad. The blue blazed Furnace Creek Trail
(another woods road) leaves the AT and heads down hill to the left.
Follow this nice trail through the hemlocks alongside Furnace Creek. Eventually you'll come to Hamburg Reservoir. Continue on the road until you come back to the AT and the bridge over Furnace Creek. Return down the gravel road and back to the parking lot.