Wondabyne Quarry should be a familiar sight to anyone who regularly travels by rail between Sydney and the Central Coast. It provided the sandstone for many of the buildings in Sydney, but in recent decades it's hardly ever in operation. Very occasionally, it will reopen for short periods to provide stone for specific projects.
I respected the no trespassing signs and didn't attempt to enter the site, but I got some decent photographs from the surrounding cliff tops. An ancient, extremely rusty crane overlooked one side of the quarry. Two newer cranes were perched atop the cliffs on the opposite side. A fourth crane, apparently long disused, sat rusting forlornly on the ground in the middle of the quarry.