If you are looking for a slice of history and nature in Central Pennsylvania, you might want to visit Milton and Northumberland, two boroughs on the West Branch Susquehanna River. Milton and Northumberland were both founded in the 18th century and played important roles in the development of the Pennsylvania Canal and the Pennsylvania Railroad. You can explore their historic districts and see landmarks such as the Milton Armory, the Milton Freight Station, and the Limestone Run Aqueduct. You can also enjoy the scenic beauty of the river and the surrounding hills, and relax at Pineknotter Park, a riverside park with picnic facilities and a playground.