Martin Marietta Aggregates is one of the leading producers of construction aggregates in the United States. The company supplies crushed stone, sand and gravel used for building roads, sidewalks and foundations. It also provides asphalt and concrete. Martin Marietta Aggregates has more than 285 quarries and distribution facilities in over 25 U.S. states, as well as the Bahamas and Nova Scotia. The company also offers a range of technical support solutions for infrastructure, commercial and residential applications. It has aggregate reserves of nearly 13 billion tons. Martin Marietta Aggregates is a part of Martin Marietta Materials, which operates Martin Marietta Magnesia Specialties.