Langston & Associates

Geological and Mining Engineers

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Client List

Kinross Gold Corporation

New Era Petroleum, LLC.

MT Manroc Development

International Roll Forms,

Golden Sunlight Mines, In

Stillwater Mining Company

Hecla Limited

P.T. Freeport Indonesia

Chevron Mining, Inc.

Dynatec Mining Corporatio

Denison Mines Inc.

Montanore Minerals Corp

GeorgiaPacific Gypsum LLC

Barrick Goldstrike Mines

Sanford Labs

Addwest Minerals Int'l

SK Geotechnical, Inc.

U.S. Silver Corporation

Coeur Alaska, Inc.

Belmont Mining

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Stillwater Mining Company

East Boulder Mine

Work Performed:  Review and analysis of Alimak raise ground control standards and specifications. Conducting mine wide audits, stability evaluation of specific underground excavations, and geotechnical risk analysis.  Facilitation of fault tree analysis for operational viability of main ventilation raise system and life of mine muck pass system.  Blasting studies regarding effects on rock mass stability.


Stillwater Mining Company

Stillwater Mine

Work Performed:  Finite element modeling and recommendations on constructing new station on pre-existing concrete lined production shaft.  Mine wide audit of headings with recommendations to remediate problems and risk analysis.  Risk analysis involving ventilation drift break-out through 100 ft thick talus field.  Recommendations regarding drilling and blasting control.


Stillwater Excavating

Work Performed:  Generation of mining proposal and pre-feasibility study.