Imperial Project, Imperial, California United States. Bureau of Land Management. El Centro Resource Area Published: 1997 Total Pages: 768 Get eBook
Imperial Project (gold Mining/processing Operation), Imperial County Published: 1995 Total Pages: 658 Get eBook
Imperial Project, Open-Pit Precious Metal Mining Operation Utilizing Heap Leach Processes, Imperial County Published: 2000 Total Pages: 682 Get eBook