Tierra Group conducted a Preliminary Site Assessment of a potential large-scale landslide near the El Diamante Hydropower Complex in Matagalpa, Nicaragua.
Tierra Group reviewed and provided pit slope recommendations and conducted hydrological assessments for the Resource 1 and 2 deposits water management system at Troy Resources’ Karouni Mine (Karouni). Advanced pre-feasibility level recommendations for pit development were provided based on benchmarking…
The Bolivar mine is a 3,000 tonne per day underground mining operation in Chihuahua, Mexico producing copper, zinc, silver, and gold. Space constraints in mountainous terrain require dewatering tailings to reduce required area for tailings storage. Tierra Group is assisting…
Tierra Group implemented a corporate Tailings Stewardship Strategy (TSS) at all of ASARCO Grupo Mexico’s mines in Arizona, USA (Hayden, Mission and Ray mines). Tierra Group conducted a site visit to each site to perform dam safety inspections, interview operations staff,…
The Aurora Mine Mill Facility (previously Esmeralda Mill) is located in the historic Aurora mining district of the eastern Sierra Nevada Mountain Range in Nevada, USA. Aurora recently, with the support of Tierra Group completed a Minor Modification to the…
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…
Tierra Group provided tailings engineering design and consulting services for the redevelopment of the Orotex underground mine in Alajuela, Costa Rica. Tierra Group's areas of responsibility included tailings and water management in this environmentally sensitive, high rainfall, tropical, mountainous region.
Tierra Group developed a site-wide water management plan to improve operational water usage and management at Jaguar Mining's Turmalina Complex in Minas Gerais, Brazil. Turmalina is a zero-discharge facility that required optimizing tailings supernatant usage in the process, enhanced evaporation…
The Midas Mine is located in northern Nevada, and is owned and operated by Hecla Mining Company. The mine is an underground mine with an operating mill. The mine’s existing tailings facilities are nearing their end of operating life and…
The Yauricocha Mine is a polymetallic (copper, lead, zinc) underground mine located in Yauyos Province, Lima, Peru. Tailings are deposited in the Yauricocha Tailings Storage Facility (TSF) located 3km from the process plant. Tierra Group was engaged in 2015 to…
Tierra Group was selected to assist Goldcorp with global Tailings Stewardship Strategy (TSS) implementation at all of Goldcorp’s active tailings sites in Latin America (Mexico, Argentina, and Guatemala). Tierra Group worked in conjunction with Goldcorp and another global engineering consulting…
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…
Tierra Group provided technical direction and review of the Gediktepe Heap Leach Facility (HLF), ponds, and waste rock dump facility designs. Tierra Group will also provide CQA review during HLF construction.
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