Statement of Qualifications

Earth and its environment provide the natural resources necessary for life. It is mankind’s most precious commodity, whose resources are finite, yet necessary to sustain and expand society. Using Earth’s natural resources modifies the environments natural balance creating both positive and negative impacts. The key to environmental management is balancing the effects of mankind’s earthly modifications to promote life while minimizing impacts harmful to achieving environmental balance. With respect to mankind’s natural resources (excluding water and air), it is said, “If it can’t be grown, it must be mined”. Think about it. It's a given. Developing Earth’s natural resources requires human interaction with the Earth and its environment. Tierra Group assists our customers to produce Earth’s natural resources in a way that minimizes harmful impacts to the environment, while maintaining a balanced sustainability, for continued beneficial uses. Tierra Group’s areas of environmental expertise include:

  • Baseline Studies
  • Environmental Assessments (EA)
  • Environmental Impact Studies (EIS)
  • Permitting
  • Environmental Monitoring
  • Forensics
  • Mined Land Reclamation and Closure

Tierra Group has performed our services on six continents in arid and temperate to extreme climates including;

  • Tropics
  • Semi-Arid and Arid
  • Mediterranean
  • Humid (Sub-Tropical and Continental)
  • Coastal Marine
  • Sub-Artic
  • High Altitude (above 4,000 masl)
  • Mountainous Terrain

By applying our forward thinking geotechnical, water resources, geologic hazards, and civil engineering expertise, Tierra Group has assisted our clients in successfully producing Earth’s natural resources while minimizing environmental impacts and creating balance in our diverse and precious environment.


Select Environmental Projects

American Gypsum

American Gypsum Pit Planning and Support Tierra Group began working at American Gypsum’s Eagle-Gypsum mine located in Gypsum, Colorado in 2014 evaluating haul road improvements. A trade-off study provided a tool for American Gypsum to evaluate safety improvements including alternative haul road…

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Mt. Todd Dam Assessment

Tierra Group conducted an Independent Technical review of Vista Gold Corp’s Mt. Todd Tailings Storage Facility Expansion in Northern Territory, Australia. Tierra Group assisted the 2025 Mt. Todd feasibility study project providing TSF and waste rock dump design and water…

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Anglo American Quellaveco Mine | PerĂº

Tierra Group supervised a geotechnical and hydrogeologic drilling investigation program at Anglo American’s Quellaveco Mine in the Moquegua Region of Peru. Geotechnical Investigation Tierra Group developed a geotechnical and hydrogeological research plan within and near the Quellaveco Pit footprint. This…

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Equity Silver ITRB

Tierra Group's Matt Fuller, LEG, P.Geo. serves as one of three ITRB technical experts providing technical assurance of the Engineer of Record’s design and monitoring compliance with BC regulations, the Newmont Corporate Tailings Standard, and industry best practices.

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Pitarrilla Mine

Tierra Group participated as a member of a multi-disciplinary project team to develop a Definitive Feasibility study for a 16,000 tpd silver mine in Durango, Mexico. Tierra Group's responsibilities included designing a 112 Mt tailings storage facility, developing a site-wide…

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Terronera Project

Hydrogeologic Characterization Tierra Group provided hydrogeological support for data characterization and developed a conceptual and groundwater model to evaluate mine water inflows and the associated groundwater drawdown due to mine dewatering activities. Water Management Technical Review Tierra Group provided a…

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Goldfield Bonanza Project

Lode-Star Gold, Inc., in advance of their proposed mining operations, submited a Physical Separation Facility application with the State of Nevada for their Goldfield Bonanza Project located in Esmeralda County, Nevada. The mine, located in the historic high-grade gold-bearing district of…

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Esmeralda Mill

Tierra Group was contracted by Waterton Global Mining Company to prepare the FPCP for TSF No.1 at the Esmeralda Mine. TSF No.1 covered approximately 100 acres, included a rockfill embankment with a maximum height approximately 60 feet, and stored gold tailings. Work…

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Douglas County, CO | 2020 Stormwater Support

Tierra Group provided engineering and permitting support to Douglas County Public Works Engineering for NPDES Phase II Program compliance. Tierra Group’s scope of work included developing Runoff Control Plans (RCPs) for new County facilities, updating RCPs at existing County facilities,…

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Stibnite Gold Project

The Stibnite project is located in the remote central Idaho Rockies near the town of Yellow Pine.  It is a brownfields gold-antimony project featuring three open pits and an anticipated 22,000 tpd plant throughput, along with challenging terrain and environmental…

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Los Lirios Project

Los Lirios is a brownfields mine development project in southern Honduras. Los Lirios lies adjacent to an extensive shrimp-farming industry which raises water quality and supply awareness. Tierra Group is implementing a pre-development baseline water characterization study for the proposed…

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El Mochito Mine

El Mochito is an underground zinc/silver mine located in the Santa Barbara Mountains in north-central Honduras. Tierra Group’s Team has been providing Tailings Stewardship Services at El Mochito continuously for the past 26 years. Since 1989, Tierra Group engineers have provided…

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