There are three primary access areas for the park. The northern access point is at White Haven, just off exit 273 of Interstate 80 on Pennsylvania Route 940. This is the important northern entrance into the river cut gully or gap between highlands, and was an important barge loading transshipment point on the newly extended upper Lehigh Canal fed initially by a shortline railroad from the Mountain Top yard dating from the 1837 enabling legislation set up to join the Lehigh and Susquehanna Valleys via Mountain Top and the Ashley Planes incline railway.