Tierra Group performed calculations and developed a technical memorandum requesting temporary authorization to impund within the current stage freeboard limits.
Tierra Group performed a TSF Design Review to support a NI 43-101 compliant Feasibility Study. The TSF design incorporated a paste tailings disposal method in an environmentally sensitive fisheries habitat in south-central Montana.
Tierra Group prepared an engineering design change to increase the maximum elevation permitted for the mine’s existing WWR. Project included a waste rock dump expansion civil design and stability modeling to verify design complied with regulatory dam safety criteria.
Tierra Group’s work included the design and construction quality assurance (CQA) of a new tailings storage facility (TSF) at the Los Gatos Project in Chihuahua, Mexico.
Tierra Group provided Tailings Stewardship Services for Continental Gold’s Buriticá Project in Antioquia, Columbia which included permitting support, Third-Party Review and construction and operations support. Tierra Group oversaw the development of a 2D hydrodynamic model to support the design of…
Tierra Group conducted an Independent Technical review of Vista Gold Corp’s Mt. Todd Tailings Storage Facility Expansion in Northern Territory, Australia.
Tierra Group performed an independent technical peer review of the Boleo Mine’s operating tailings storage facility design. In doing so Tierra Group identified several design modifications that when implemented for future stages will reduce sustaining capital cost expenditures by several…
Jaguar's gold operations, Turmalina, Paciência and Caeté, are located in the Iron Quadrangle region, a prolific greenstone belt near the city of Belo Horizonte in the state of Minas Gerais, Brazil. Jaguar controls 27,357 hectares of mineral concessions in this…
Tierra Group provided a heap leach facility detailed design (for construction), procurement, CQA and project management for the Camino Rojo Mine in Zacatecas, Mexico.
Tierra Group provided a Third-Party review of the Hermosa Project Tailings Storage Facility Design and Construction stages 1 & 2 in Patagonia, Arizona
The Midas Mine is located in northern Nevada, and is owned and operated by Klondex Mines LTD. The mine is an underground mine with an operating mill. The mine’s existing tailings facilities are nearing their end of operating life and…
Tierra Group provided an annual third-party tailings storage facility and heap leach facility technical review at Anagold’s Çöpler Gold Mine in Middle Anatolia, Turkey.
Tierra Group performed geotechnical investigation, water balance, and the Phase 2 heap leach pad (HLP) optimization design at Agnico Eagle’s La India Mine in Sonora State Mexico. Tierra Group provided Construction Quality Assurance (CQA) during initial construction and expansion of…
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