Lumber became one of the leading industries in Pennsylvania. Trees were used for fuel, tannin for the many tanneries that were spread throughout the state, and wood for construction, furniture, and barrel making. Large areas of forest were harvested by colliers to fire iron furnaces. Rifle stocks and shingles were made from Pennsylvania timber, as were a wide variety of household utensils, and the first Conestoga wagons. The Philadelphia–Erie Pike (present day Pennsylvania Route 504) opened the Black Moshannon area to settlers by 1821. The first settlers opened the Antes Tavern along the Pike, trapped fur-bearing animals, and cleared land for farming.