A quarry is where granular material has been excavated.
A quarry is a place from which dimension stone , rock , construction aggregate , riprap , sand , gravel , or slate has been excavated from the ground.
Gravel is categorized by the Udden-Wentworth scale into granular gravel -LRB- 2 to -RRB- and pebble gravel -LRB- 4 to -RRB-.
