McKean County Courthouse is located at 500 West Main Street, Smethport PA 16749; phone: 814‑887‑3200.
Formed March 26, 1804; named for Thomas McKean, second Governor of Pennsylvania; mean altitude 1700 feet. Mount Jewett is one of the high points in the state; half a mile from Mount Jewett is the great Kinzua Viaduct on the Erie Railroad, said to be the highest bridge in the state across a ravine. The electric line to Olean, New York, eighteen miles, through Red Rock, reveals great scenic grandeur. Chief industry, producing and refining petroleum.