Client List

The client list below shows some of the many customers HGI has successfully provided geophysical services for over the last 20 years.

Freeport McMoRan – Morenci Mine

Freeport McMoRan – Bagdad Mine

Fluid Solutions

Coeur Rochester Mine

Cotter Corporation

City of Tucson

Inland Explorations

KGHM – Robinson Mine

Kinross Gold – Round Mountain Mine

Kennecott Mining

Newmont Mining – Gold Quarry Mine

Newmont Mining – Twin Creeks Mine

Sago Mine

Veris Gold – Jerritt Canyon Mine


Brown & Caldwell

Clear Creek Consulting

CH2M Hill

Montgomery & Assoc.

Fluor Hanford

SRK Consulting


Tetra Tech

URS Corporation


Fremont County SWDD (WY)

Panama Canal Authority

Tucson International Airport

Washington River Protection Solutions (WRPS)

U.S. Dept of Energy