Donald L. Gustafson

Golden Cycle Gold Corp. discovers, develops, and mines precious metal properties. The company's primary mining operation consists of its participation in Cripple Creek & Victor Gold Mining Co., a joint venture with AngloGold Ashanti. It was founded in November 1895 and is headquartered in Colorado Springs, CO

The Prospectors & Developers Association of Canada operates as a mineral exploration and development association. The non-profit company is based in Toronto, Canada. and has subsidiaries in Canada.

Geological Society of Nevada operates as a scientific society that promotes the geological sciences. It encourages the dissemination of scientific and practical knowledge through semiformal presentations, field trips and symposia as well as by publishing the literature resulting from the activities. The company is headquartered in Reno, NV.

Society of Mining Engineers represents all professions serving the mining, minerals and underground construction industries. Its memebers include engineers, geologists, metallurgists, educators, students and researchers. The company was founded in 1871 and is headquartered in Wapwallopen, PA.

Canadian Society of Exploration Geophysicists promotes the science of geophysics, especially as it applies to exploration. It offers education through lecture tour, symposium, DoodleTrain, CSEG talks, GeoConvention and workshops. The company was founded in 1949 and is headquartered in Calgary, Canada.

Homestake Mining Co. of California was owned gold operations, located in the following countries: Argentina, Australia, Canada, Chile and USA. The Company was founded to develop the Homestake mine discovered in the Black Hills of the Dakota Territory in 1876. It was a gold mining company until its diversification into uranium mining. Homestake Mining was headquartered in San Francisco, CA.

Columbus Exploration Corp. engages in the acquisition, exploration and development of resource properties, with silver as a principal focus. It operates in Arizona, New Mexico and Utah. Its projects include Clanton Hill, Silver District, Mogollon and Silver Dome. The company was founded on May 18, 2007 and is headquartered in Vancouver, Canada.