Rainbow Stone Company is an Arkansas flagstone quarry located in Subiaco, Ark. Since 1973, the firm has been offering natural Arkansas flagstone and building stone to contractors, architects, and stone yards. Its product line includes Arkansas Flagstone, Building Stone,Veneer, and Arkansas Fieldstone. Rainbow Stone Company operates four quarries in the River Valley, each producing a unique stone. The firm supplies stone yards all over the United States, with chopped stone, flagstone, tumbled stone, and fieldstone.