Chief Cliff Patio A hard argillite stone available in patio grade flagstone, treads, boulders, masonry stone & more!The iron oxide in this stone allows for surface colors ranging from light tan to a dark chocolate brown-grey. Click here to see Chief Cliff Boulders Photo Gallery Contact us for more information Contact Contact Us (208) 656-5832 office.blinepavers@gmail.com Facebook Pinterest Houzz Site Map Products Landscape Stone Manufactured Products Building Stone Outdoor Living Project Gallery About Us Contact