Take the George Washington Bridge to Route 80 West. Take Route 80 west for about 70 miles. About a mile before the bridge across the Delaware River, which separates New Jersey and Pennsylvania, there is a turn-off on the right for a parking/rest area. You willfirst see a parking area to the right, then an underpass to the left and then a second parking area on the right (and then a way to get back on Route 80 straight ahead). You will be parking in this second parking area to the right. It is where both the Appalachian and Mount Tammany trails can be found. The parking area is just after mile marker 1 on Route 80 (GPS: N 40.9716 W 75.12547).

If you miss the turn off for the parking area, take the very next exit, which is the last exit in New Jersey and then follow signs (to the left) for the National Park Service Visitor's Center and then take the underpass to get to the parking area described above. Do not cross the bridge to Pennsylvania. There is no toll to be paid on this trip (only at the GW bridge on the way back). If you have paid a toll, you have gone too far!