Tiadaghton State Forest, Pennsylvania

Tiadaghton State Forest

Tiadaghton State Forest is a Pennsylvania State Forest in Pennsylvania Bureau of Forestry District #12. The forest is chiefly in western and southern Lycoming County, with small portions in Clinton, Potter, Tioga, and Union counties.

As of July 1 2005 the state forest lands in eastern Lycoming County, which had been part of Tiadaghton State Forest, became part of the new Loyalsock State Forest. The main office for district #12 is in South Williamsport, in Lycoming County, Pennsylvania in the United States. There are plans to move it to the Pine Creek valley, perhaps to the village of Waterville. Tiadaghton is the Iroquois name for Pine Creek, but its meaning is unknown.


Tiadaghton State Forest was formed as a direct result of the depletion of the forests of Pennsylvania that took place during the mid to late 1800s. Conservationists like Dr. Joseph Rothrock became concerned that the forests would not regrow if they were not managed properly. Lumber and Iron companies had harvested the old growth forests for various reasons. They clear cut the forests and left behind nothing but dried tree tops and rotting stumps. The sparks of passing steam locomotives ignited wildfires that prevented the formation of second growth forests.

Conservationists feared that the forest would never regrow if there was not a change in the philosophy of forest management. They called for the state to purchase land from the lumber and iron companies and the lumber and iron companies were more than willing to sell their land since that had depleted the natural resources of the forests. The changes began to take place in 1895 when Dr. Rothrock was appointed the first commissioner of the Pennsylvania Department of Forests and Waters, the forerunner of today's Pennsylvania Department of Conservation and Natural Resources. The Pennsylvania General Assembly passed a piece of legislation in 1897 that authorized the purchase of "unseated lands for forest reservations." This was the beginning of the State Forest system.

2005 Realignment

Prior to the July 1, 2005 realignment of Pennsylvania State Forest Districts, Tiadaghton State Forest included all state forest lands in Lycoming County and encompassed . After realignment, the state forest tracts in eastern Lycoming County became part of the new Loyalsock State Forest. The District #12 office will also move from South Williamsport to Waterville, at the confluence of Little Pine Creek and Pine Creek, where the largest part of the forest is now located. The southern tracts are along Bald Eagle Mountain, North White Deer Ridge, South White Deer Ridge, and the White Deer Hole Creek watershed.

Neighboring State Forest Districts

Nearby state parks

Other attractions


Natural areas

  • Algerine Swamp Natural Area;
  • Bark Cabin Natural Area; with a stand of old growth hemlock, and the Mid State Trail
  • Miller Run Natural Area; oak and hardwood forest, three streams
  • Red Pine Natural Area; with a stand of old growth red pine.
  • Torbert Island Natural Area; , an island in Pine Creek.

Wild Areas

  • Algerine Wild Area; with the Black Forest Trail
  • Wolf Run Wild Area; with the Golden Eagle Trail


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