Washed Rock is mixture of natural, round and some fractured washed rocks. These rocks has been cleaned free from clay, dirt and other natural debric and contamination. White these rocks has been cleaned but it may not be 100% free from all debris. As the washed rocks are natural sedimentary materials, the sizing, roundness and coloring will be inconsistent throughout. Washed rocks are commonly used as a decorative rocks for landscapes and gardens. However it could also be used for drainage, back fill, weeping tile, pathways, driveways, play areas, grilling areas and anywhere else you want it in your outdoor areas.