Calumet – Served by a dedicated rail spur along its north west face, this massive brick structure was built to house supplies for the burgeoning C&H Mine. Today it continues to be used for storage, but under the stewardship of the national park.

Calumet – As C&H grew by leaps and bounds it quickly became clear that more storage space was needed and a second larger warehouse was soon built. While not as dignified as its brick predecessor, this particular structure was large enough to allow trains to pull directly inside to unload their cargos.

Delaware – This impressive rock walled building once housed materials and supplies for the Delaware Mine and its later incarnations.