The Robinson Mine as it exists today was built in 1994 through 1996 for approximately $480 million and ran until operations were suspended by BHP Copper in 1999 due to low commodity prices (60¢ per pound copper and $260 per ounce gold). . Quadra purchased the mine from BHP Billiton in April 2004, and immediately recommenced operations, reaching full production in October 2004 more than two months ahead of schedule and following capital upgrades to the process plant facility. The mine mobile equipment had been reassigned to another BHP Billiton project and was replaced with new equipment.
The current mine infrastructure consists three large open pits; Liberty (previously mined out by BHP Copper), Tripp-Veteran, and Ruth, a conventional process plant with SAG and ball mill grinding followed by floatation. A molybdenum recovery circuit was constructed by Quadra and entered operations in December 2005.