Decomposed Granite (DG) is a kind of granite rock that is weathered to the point that the parent material readily fractures into mixtures of gravel-sized particles.
It is used on driveways, garden walkways, bocce courts and heavy-use paths. DG can be installed and compacted to meet handicapped accessibility specifications and criteria, such as the ADA standards in the U.S.
DG also makes excellent material for horse footing.