[6] There was also a clay quarry operation known as Statham's in Glen Forrest which was a brickworks.

The quarry is the claimed location of one of the most extensive dolerite dikes on the Darling Scarp.

[7] The quarry was serviced by the Kalamunda Zig Zag section of the Upper Darling Range railway during the time of its operation (which closed in 1949), and was finally put out of operation by a bushfire in 1957.

The main current usage of the quarry is rock climbing and abseiling, with the Department of Parks and Wildlife providing facilities and maintaining the site.

The quarry's importance as a safe easily accessible and well maintained climbing and abseiling location close to the metropolitan area of Perth can be found in the climbing records.