 The furnace first switched its source of lime to a quarry along the Central RR of PA, instead of the Bellefonte Central, and in 1903, a new interchange between the Central RR of PA and the PRR allowed the furnace to shift inbound coke and outbound iron traffic to the Central as well.Furthermore, the Mesabi ores were beginning to replace local ore, even in Bellefonte.Bellefonte Furnace closed on December 21, 1910, and Nittany Furnace in 1911.