This Is Red River Rubble It's a hard, fine-grained sandstone from the now-dry bed of the Kiamichi River in Oklahoma. In color it ranges from a warm umber through a variety of brcwnish reds to warm, light tan . Face textures are just as varied. Over thousands of years rushing water has sculptured each individual stone with an infinite diversity of hollows, ridges, striations, swirls and has worn each surface to a soft, mellow smoothness . The general character of this unusual stone suggests its use in broad, unbroken areas wherein rugged scale and rich color are dominating factors of design . Age and exposure can do nothing to this stone except enhance the mellow richness of its natural beauty. .. DUNAN BRICK MIAMI, FLORIDA BRICK YARDS, INC. TUXEDO 7-1525 . .