Martin Marietta Materials, Inc. is a leading producer of construction aggregates in the U.S., supplying granite, sandstone, limestone, sand and gravel for a wide range of infrastructure, commercial and residential applications. The company is also a leading producer of magnesia products.

Martin Marietta Martin Marietta Materials Martin Marietta Aggregates Aggregates Gravel Crushed Rock Crushed Stone Crushed Aggregates Quarries Quarry Aggregates Sand And Gravel Rocks Stones Rock Sand Stone

Granite Sandstone Limestone Ballast Asphalt Materials Rip Rap Riprap Construction Road Construction Aggregates Concrete Pits Mlm Magnesia Specialties Martin Marietta Magnesia Specialties