[3] In 1792, a party of immigrants who were building the Williamson Road from Williamsport, in Lycoming County, to Painted Post in New York, under the leadership of Robert and Benjamin Patterson, discovered coal within the present town limits of Blossburg.

Sometime between 1818 and 1820, Bloss made the first attempt to found a town, changing the name of Peter's Camp to Blossburg.

Clemens opened a mine on Bear Run between 1812 and 1815, serving only the Painted Post area.

In the meantime, Blossburg coal was being shipped to Painted Post, Elmira, and Corning in western New York.

More important than the local runs, Blossburg coal was being shipped to the state capital at Albany.

In 1826, Judge John H. Knapp erected an iron ore smelting works within the borough limits of Blossburg.

In July 1840, the railroad was constructed through Covington from Corning, and was opened for locomotives to Blossburg in September.

This railroad allowed the mines to be tapped and for their coal to be easily distributed through the Twin Tiers.

On June 23, 1967, Mohawk Airlines Flight 40 crashed outside of Blossburg with the loss of all 34 passengers and crew.