Andy Wallace is the president of Columbus Gold Corporation and the principal of privately held Cordex Exploration Co. (Cordex), considered by the mining industry to be one of the most successful gold exploration groups in the United States. 

Cordex was founded by the legendary John Livermore, who discovered the Carlin Mine in Nevada and a new type of gold mineralization that is now referred to as “Carlin-type.” The discovery of the Carlin mine transformed the gold mining industry in the United States and perhaps the world. A flurry of exploration for Carlin-type gold ensued, and as additional discoveries were made, the Carlin Trend of Nevada became the most prolific gold field in the Western Hemisphere and the second largest gold depository in the world. 

Today, the Carlin Trend hosts more than 120 million ounces of known proven and probable reserves and has produced approximately 60 million ounces of gold to date, making Nevada the largest gold-producing area in the world.

It is at the height of the Nevada gold rush of the 1970s that Andy Wallace joined Cordex in 1974, initially as a consultant, then as a full-time geologist in 1978 and eventually manager of exploration in 1985. Cordex is credited with an unprecedented nine gold discoveries in Nevada, and a number of them were under Mr. Wallace’s management, including the 5-million-ounce Marigold mine, now operated by Goldcorp, and the 12-million-ounce Stonehouse/Lone Tree and Daisy mines, all now controlled by Newmont.

Mr. Wallace’s experience in the gold mining industry is vast and varied, and includes every aspect of mine development. This is particularly true at his Marigold discovery and also at the Pinson and Dee mines in Nevada, where, in addition to exploration, he directed or was involved in resource expansion, development, feasibility, engineering, permitting, mine construction and production. Pinson and Dee were Cordex discoveries and are now controlled by Barrick. In the mid-‘70s, Pinson accounted for 7% of all U.S. domestic gold production.

Mr. Wallace is a certified professional geologist (CPG) with the American Institute of Professional Geologists. He completed a B.S. in geology at Eastern New Mexico University, an M.S. in geology at the University of Texas at El Paso, and a PhD in geology at the Mackay School of Mines at the University of Nevada, Reno.