Hiking / Backpacking in Pennsylvania

My wife, Kathy, and I get out several times a month to enjoy the backcountry on foot. Pennsylvania is blessed with numerous hiking trails throughout the state forest and state game lands.
Backpacking trails include:

Mid State Trail (189.1 mile point to point, Rothrock through Tioga State Forest)

Donut Hole Trail (87.3 mile point to point, Sproul State Forest)

Chuck Kieper Trail (52.8 mile loop, Sproul State Forest)

Loyalsock Trail (59.3 mile point to point, Tiadaghton and Wyoming State Forest)

West Rim Trail (30 mile point to point, Tioga State Forest)

Old Loggers Path (27.1 mile loop, Tiadaghton State Forest)

Black Forest Trail (42.2 mile loop, Tiadaghton State Forest)

Susquehannnock Trail (85 mile loop, Susquehannock State Forest)

Quehanna Trail (73.7 mile loop, Elk and Moshannon State Forest)

Golden Eagle Trail (8.9 mile loop, Tiadaghton State Forest)

Many shorter trails and cross trails on the larger loops give many possibilities for day hiking. Several Guidebooks have been published to plan trips:

Pennsylvania Hiking Trails by the Keystone Trails Association

50 Hikes in Central Pennsylvania by Tom Thwaites

Guide To The Mid State Trail In Pennsylvania by the Mid State Trail Assoc

Black Forest Trial Guide by the Tiadaghton Forest Fighters Assoc

Loyalsock Trail Guide by the Alpine Club of Williamsport

Guide To The West Rim Trail by Chuck Dillon

State Forest and Trail Maps by PA. Dept. of Conservation and Natural Resources

Black Forest Trail

Donut Hole Trail

Black Forest trail

Mid State Trail

Pitch Pine loop

Quehanna Wild Area

Chuck Keiper Trail

Bald Eagle State Forest

Old Loggers Path

Moss Hanna Trail

Sentiero di Shay Trail, Black Forest

Quehanna Trail