Tower Rock Stone

Tower Rock Stone (TRS) operates the Grays Point Quarry, located east of Semo Port. Its transfer facilities are normally reserved for company activities, but in some cases can be used for others. These include ramps for roll-on / roll-off of construction equipment and similar cargo, large cranes (on shore and on deck barges), and truck-barge transfer dock barges. The parent company of TRS, Luhr Bros., has switchboats, towboats, flat deck barges, and hopper barges.

See Port Area Industries for additional information.