After opening the west branch canal, (1834) Williamsport was linked to the rest of Pennsylvania.
In the early 19th century the only way to get trees out was to float them down the Sinnemahoning, and the Loyalsock, the Clearfield and other tributaries to sawmills on the Susquehanna River.
The west branch canal helped to connect Williamsport to the rest of Pennsylvania. A group of Philadelphia investors opened the first sawmill in Williamsport.
Began the great timber boom of 1838