cullinan mine

transport track tree road waterway soil infrastructure trail landscape wall bridge mountain walkway hill river highway reservoir terrain plant cullinan mine: source large high-quality gem diamonds including world’s important rare blue africa beautiful blue cliff cullinan deep diamond discovery environment erosion excavate excavation extraction formation gem gemstones geology green ground hole industrial industry landscape mountain natural nature observation orange outdoor outdoors petra pit quarry rock rough scenery scenic sky source south stone summer tour tourism tourist travel tree vacation view