 Lumbermen harvested the trees and sent the logs down Black Moshannon and Moshannon Creeks to the West Branch Susquehanna River, then to the Susquehanna Boom and sawmills at Williamsport.Lumber was also transported by sled and wagon over the ridges and through the valleys to Philipsburg, Julian, and Unionville.The Beaver Mill Lumber Company became one of the largest single lumber operations in all of Pennsylvania, and four lumber boomtowns, Beaver Mills, Star Mill, Underwood Mills, and Antes, altered the landscape in the Black Moshannon area.