Since 1965, family-owned and operated Granite Concrete Products (Granite Concrete) has offered high-quality, ready-mix concrete production and delivery services to clients throughout Montana from our headquarters in Libby. In 2019, Granite Concrete joined Thompson Contracting and together we offer a variety of ready-mix concrete, sand, gravel, riprap, top soil, precast concrete, and custom gravel products. For a detailed list of product, size, and availability, contact us for a quote or more information.