Erected by the Glen Alden Coal Co. in 1939, the Huber Coal Breaker could process 7,000 tons of anthracite daily. It was among the first in the industry to utilize Menzies cones to separate coal from rock. An innovative aerial tramway disposed of waste by-products. Anthracite was sprayed with an iridescent chemical to create Glen Alden's distinctive "Blue Coal." Operations ceased in 1976 following the decline of anthracite mining, and it was demolished in 2014.