To clear up any confusion concerning the article, this is the structure where the crushed iron ore was stored and loaded on to the rail cars. The trains would then carry the ore to the old concentrator plant in Lebanon for further processing. In the fifties, after Bethlehem Steel built the new concentrator plant over in Rexmont which was fed by a conveyor system, the loading pocket building was "repurposed" as a warehouse for the mining operation...

https://lebtown.com/2022/03/07/prl-will ... perations/

Very interesting. Thanks for posting.