Colebrook Township is a second class township located in Clinton County Pennsylvania. Settled in 1777, Colebrook Township covers 18.6 square miles with a population of 196 (2020 census). Located within the township is the historic Farrandsville Iron Furnace, scenic Lick Run & West Branch Susquehanna River, the Peoples United Methodist Church of Farrandsville, and a small section of Bucktail Scenic Byway leading to the Pennsylvania Wilds.