Tierra Group is providing water management and geotechnical engineering services to support a Preliminary Feasibility Study at the Rhyolite Ridge Lithium Mine Project in Nevada.
Tierra Group is assisting Millcreek Mining and Black Mountain Sand with the preparation of permitting documents for the Lost Creek Project; including a preliminary Stormwater Management Plan, preliminary Groundwater Monitoring Plan, and general permitting exhibits. Tierra Group conducted a site geotechnical…
East Boulder Tailings Independent Review Panel (2018-present) Tierra Group reviewed a TSF design to support an NI 43-101 compliant Feasibility Study. The TSF design incorporated a paste tailings disposal method in an environmentally sensitive fisheries habitat. Tierra Group sits on the Independent…
Midas Gold’s 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 completed a siting study to evaluate six potential sites for a paste TSF. Tierra Group prepared civil layouts for each TSF, determining embankment fill volumes, evaluating required diversions for upstream catchment areas, and pipeline corridor layouts. Tierra Group…
Engineer of Record Barrick’s Goldstrike Mine processes 30,000 tons of gold ore per day from its combined open-pit/underground operations located in the historic Carlin Trend in Nevada, U.S.A. Goldstrike’s tailings are stored in the North Block Tailings Disposal Facility (NBTDF).…
Creston Mascota Mine is located in Chihuahua, Mexico and is owned and operated by Agnico Eagle Mexico. Tierra Group designed the Phase 4 heap leach pad, buttress, which included geotechnical investigations, slope stability analyses and a water balance for Agnico…
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…
Tierra Group provided a desktop and field review of B2Gold’s Santa Pancha Mine hydrogeology. The review identified data gaps in site data and provided recommendations for improve an existing site hydrogeology model and improve underground water management. The hydrogeologic model…
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…
Dry Stack Tailings Storage Facility Design Tierra Group supported construction of the San Albino Mine in Nueva Segovia, Nicaragua. Tierra Group designed a dry stack drum filtered-tailings storage facility. A siting study optimized the dry stack location and minimized CAPEX and OPEX.…
Tierra Group updated the County’s Standard Operating Procedures (SOPs) for Municipal Operations to maintain the County’s compliance with the requirements for stormwater discharges from the County’s municipal separate storm sewer system (MS4) under the Colorado Discharge Permit System (CDPS). Tierra…
Tierra Group performed a site visit and visual inspection of a dam to assess its overall condition and provide the Owner recommendations for continued maintenance, monitoring, and improvements. The assessment was a follow-up to previous work completed by Tierra Group…
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