Rock crushed and graded by screens and then mixed to a blend of stones and fines. It is widely used as a surfacing for roads and driveways, sometimes with tar applied over it. Crushed stone may be made from granite, limestone, dolostone, and other rocks
Crusher run, crushed rock and gravel dust carefully mixed and graded to create an excellent combination of interlocking and compacting abilities, is used best on driveways, fillers and loose-fill roads due to its durability and ability to provide a firm base.