57 Stone is a thicker 3/4" limestone gravel used mainly for driveways, groundwork, or French drains. It's size makes for a stable enough surface, while it's ununiform shape allows enough space between stones for flowing water, and for tar to settle. This will not be your go-to for sloped, unstable, muddy ground as it does not compact tight. For that, use Crush N Run gravel. This will however be your stone for water control, filling depth quickly, and driveways. Available for pickup anytime or delivery!