Get back to nature on Pennsylvania Route 6. The possibilities for outdoor fun and adventure are endless! US Route 6 in Pennsylvania connects some of the most spectacular outdoor recreation available on the east coast. From Lake Erie to the shore of the Delaware River, PA Route 6 is home to the vast Allegheny National Forest and one of the largest amounts of state owned acreage in Pennsylvania. From fishing and boating, to bird watching, star gazing and snowmobiling, you'll find it all right here. Pick your pleasure and explore the possibilities.