Fossil Creek Stone is a quartzitic sandstone formed over 300 million years ago in the deserts of Eastern New Mexico. Formed by water deposits with a higher compressive strength (16,400 psi) and a lower absorption rate (2%), Fossil Creek Stone can be utilized in any climate and last for generations. It is a color consistent material, with its neutral beige to earth tone buff coloring. Fossil Creek Wall Caps are applied to the top of retaining walls, seating walls, and pillars to provide a protective, durable, and decorative finish, often creating 3/4-inch overhang for aesthetic “eyebrow” effects. Available sizes: 10″x24″, 12″x24″, 14″x24″, 16″x24″, 18″x24″. Finishes: Natural or Tumbled. Bottom can be natural or gauged. Standard thickness is 2″-3″.