The Minto Mine is a high grade copper-gold mine that commenced commercial production on October 1, 2007. It is located 240km north of Whitehorse, and is owned 100% by Minto Explorations Ltd., a wholly owned subsidiary of Capstone Mining Corporation. The Minto Mine is an open pit operation with conventional crushing, grinding, and flotation to produce copper concentrates with significant gold and silver credits.

Concentrates are exported via the Port of Skagway, Alaska, to smelters in Asia for treatment and sale. In December 2007 the results of an independent pre-feasibility study for the expansion of the Minto copper-gold mine were released.

This study increased reserves and laid out a path for significantly increased copper production, commencing immediately, while materially enhancing project economics. In addition, significant exploration potential exists on the Minto property and aggressive exploration programs conducted by Capstone Mining Corporation have met with considerable success