Cascade Township, which adjoins Lewis on the east and extends over to the line of Sullivan County is the sixth in size in Lycoming County and has an area of 28,800 acres. It is one of the largest townships in the county.

The region is wild and mountainous, the only farming land being in the valleys and high plateaus. Burnett’s ridge extends across it from east to west for its entire width. This ridge was a famous landmark in the early days and was designated as a line of the Indian purchase of 1768. It was named for William Burnett, at one time governor of the colony of New York, and a prominent man in England during the reign of William and Mary. It takes its name from the numerous cascades which are to be found in the mountain streams which course through it.

It was not settled until 1843 when Michael Kelly, a sturdy Irishman, made his way into it. He blazed the road from Lycoming Creek for six miles so that he could drive an ox team along it, built a log house and engaged in the business of hauling logs to the nearest mill on Lycoming Creek.

Other settlers soon followed in the wake of Michael Kelly, most of them Irishmen, who bravely battled with the hardships of the wilderness, built houses for themselves and reared families, many of whom have left a lasting impression on the history of the county.

Kellybury named after Michael Kelly is the only town. It has an imposing Catholic church which is the only place of worship in the township. The schools are all good and on a par with others in the county. Kellyburg is a United States postoffice, one having been established there July 25, 1866, with Michael Kelly as its first postmaster.

On account of the wildness of the territory Cascade had a population of only 532 in 1920 notwithstanding its large size.