Sierra Granite River Rock Cobbles These Central California river cobbles are similar to San Gabriel River Cobbles. There are rough textured river rock made up of light to darker shades of of grey and silver granite This rock improves with age as the small amounts of river sand residue washes out of the stone. These stones have a wide variety of uses, including creek beds, rock veneers on houses, rock pillars, fireplaces, fences, planters, fountains and retaining walls. This stone is silver and gray in color with brown and rust tones. These beautiful river rock pair nicely with our granite boulders or many of our natural stones in creek beds.
