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“…the kindness, love and grace Tierra Group shows to others (especially its clients…) is rare…Tierra Group is gold…”

Reneé A. Carmody, Lewis Roca Rothgerber LLP

“Tierra Group’s Team has provided Nyrstar with geotechnical and environmental engineering services to a large majority of our mining operations. Primarily focused on practical tailings impoundment solutions, and has been a dedicated engineering partner to Nyrstar.”

Rod Lamond, Group General Manager – Exploration and Mining Development, Nyrstar

“Tierra Group is playing a key role in the development of our world-class Pitarrilla asset in Mexico, developing the life-of-mine tailings storage facility and a site-wide water balance.”

Robert Byrd, Silver Standard Resources

“By providing excellent service during design, construction, expansion, and operations Tierra Group International has become an integral part of our La Libertad tailings storage team.  Their ability to provide professional field and office engineering as well as on-site training makes Tierra Group International our primary resource for geotechnical and tailings projects.”

Peter Montano, Manager, Mine Engineering, B2Gold Corp.

“Knight Piesold has been assisted by Tierra Group on a few key assignments and found the people and overall experience to be excellent.”

Tom Kerr, President, Knight Piesold and Co.

“With the complex tailings storage system at our El Limón mine we needed a flexible and creative team to help us build a new facility and maintain our existing facilities.  Tierra Group’s depth and breadth of ability and experience has been called upon many times over the past three years and they continue to provide us with site-specific solutions.”

Peter Montano, Manager, Mine Engineering, B2Gold Corp.

“Our Clients are First,

  the Team is Second,

      and I am Third.”

Latest News



Marvin Silva, Ph.D., P.E., P.Eng. joins Tierra Group as Senior Geotechnical Consultant in Tierra Group’s Southwest Region office in Arizona



Goldcorp, Inc. signs contract with Tierra group to provide Tailings Stewardship Strategy Services at all of Goldcorp’s operating mines in Latin America

Featured Teammate


Matthew L. Fuller, C.P.G., L.E.G.

Matt Fuller is a Founding Principal of Tierra Group International, Ltd. and an Engineering Geologist. Matt’s professional technical experience spans more than 30 years providing geological, geotechnical, environmental consulting services to the international mining industry.…