Colona Transfer LP is a full-service intermodal transfer facility located in the Port of Pittsburgh, specializing in bulk material handling including aggregates, coal, coke, fertilizer, and more with barge, rail, and truck services.
We own strategically located, proven, long-life reserves of high-quality industrial minerals.
Great Lakes Minerals
The largest and highest-quality limestone producer on the Great Lakes, with quarries, processing plants, docking facilities and the largest fleet of self-unloading U.S.- Flag vessels on the Lakes.
Global Stone
Operates limestone quarries and lime and limestone processing facilities serving customers located primarily in the Mid-Atlantic and southeastern United States.
Performance Minerals
Mines and processes specialized industrial minerals, primarily high-purity silica sands and muscovite mica, with facilities in the southwestern United States, Ohio and North Carolina.