Tumbled Pantano River Rock is locally sourced in the Tucson valley. Although it is not quite as smooth, rounded and colorful as the Salt River Rock from the Phoenix valley, it does have similar characteristics and is economically priced. Applications include slopes subject to weathering, stream banks, inlets and outlets for culverts, slope drains, grade stabilization. The rock contains mostly blue-grey tones and wide size range 3″ to 12″. This product will contain fines.