North Mountain is a 2,584-foot (788 m) ridge primarily located in Davidson Township of Sullivan County in the U.S. state of Pennsylvania. Its summit is that county's highest point, the 10th highest among the state's 67 counties. Portions also extend into neighboring Lycoming, Luzerne, and Wyoming counties. The mountain has a topographic isolation of 57.99 miles (93.33 km). U.S. Route 220 passes near the mountain. The mountain once had a prolific population of animals, including grouse, deer (including white deer), and bears.