Culbertson's Path followed White Deer Hole Creek west from Allenwood, then followed Spring Creek north, crossed Bald Eagle Mountain and followed Mosquito Run to the river at the current borough of Duboistown. Here it crossed the river to French Margaret's Town (western modern day Williamsport) before joining the major Sheshequin Path, which led north up Lycoming Creek to the North Branch of the Susquehanna River, modern New York, and the Iroquois there. These trails were only wide enough for one person, but settlers in White Deer Hole valley broadened the path to DuBoistown to take grain to Culbertson's mill on Mosquito Run, hence the name. Culbertson's Path was used as a part of the Underground Railroad until the American Civil War began in 1861. Escaped slaves would often wade in creeks to hide their scent from pursuing bloodhounds. In 2009, there is still a Culbertson's Trail, for hiking over Bald Eagle Mountain from Pennsylvania Route 554 to Duboistown.