Crushed stone is produced by mining and crushing rock into various graded sizes for use in applications such as ready-mix concrete, asphalt, and decorative stone. Gravel, on the other hand, is formed through river erosion, resulting in smooth, rounded particles. Finished products can be either smooth and rounded or crushed to meet specific project requirements. Capitol sells gravel at the Hoban Sand and Gravel plants and produces crushed stone at its Delta Materials, Rio Medina Quarry, and Solms Quarry.