Stibnite Gold Project

Project Highlights:

  • Tailings Storage Facility (TSF) Design
  • Geotechnical Engineering
  • Civil Engineering
  • Hydrology
  • Water Balance
  • Pre-feasibility Study
  • Water Diversions

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 constraints. Tierra Group completed the preliminary feasibility design for the proposed tailings storage facility, water diversions, and site-wide water management, including relevant content for the NI-43-101-compliant prefeasibility technical report. Tierra Group also completed TSF and water diversion designs and completed reclamation cost estimating for a NI 43-101 compliant feasibility study published in January 2020. Tierra Group also completed engineering analyses and design for federal and state permitting.

The TSF was lined with a composite geosynthetic liner system. A rockfill buttress was built in multiple stages during project development. Diversions redirected a perennial mountain stream around the TSF. Tierra Group continues supporting Midas by completing detailed design and permitting support.

Project Highlights:

  • Tailings Storage Facility (TSF) Design
  • Geotechnical Engineering
  • Civil Engineering
  • Hydrology
  • Water Balance
  • Pre-feasibility Study
  • Water Diversions

Similar projects

Dam Low Level Outlet Replacement

Tierra Group completed a geotechnical investigation, which included overseeing hollow stem auger (HSA) drilling and laboratory testing, that characterized the existing earthen dam. Tierra Group completed a low-level outlet structure design that was believed to have been compromised by internal…

VIEW PROJECT

Hollister Waste Rock Facility

Hollister Waste Rock Facility Storage Tierra Group performed a third-party peer review of a Waste Rock Storage Facility (WRSF) design at Klondex Mines’ (Klondex) Hollister Mine in northern Nevada. The WRSF, as designed, involved lining the mine’s existing West Pit…

VIEW PROJECT

Hermosa Project

Tierra Group provided a Third-Party review of the Hermosa Project Tailings Storage Facility Design and Construction stages 1 & 2 in Patagonia, Arizona

VIEW PROJECT

Channel Design Support in Nevada

Tierra Group provided Civil3D channel design support of diversions for four sites within a large mining property in Nevada.

VIEW PROJECT

Kiaka Feasibility Study Update

Tierra Group led the Feasibility Study update for the Kiaka project. Tierra Group  updated the TSF, WRD, hydrology / hydraulics, mine planning, and overall assembly and authoring of the updated NI 43-101 Technical Report.

VIEW PROJECT

Pirquitas Tailings Review

Tierra Group prepared a civil engineering design for SSR Mining’s Mina Pirquitas in Jujuy Province, Argentina and developed current and future water-mass balance through hydrological/hydraulics calculations and modeling. Tierra Group developed the ultimate tailings surface, deposition plan, spillway relocation analysis,…

VIEW PROJECT

La India Mine

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…

VIEW PROJECT

Asarco 2021 Tailings ITR

Tierra Group provided Independent Technical Review (ITR) services for four active tailings storage facilities (TSFs) as part of Asarco’s Tailings Stewardship Program in Arizona

VIEW PROJECT

Endeavour Silver Terronera Project

Tierra Group provided a water management technical review to support the feasibility study. In addition, the project included a site visit and technical assistance during fieldwork execution. Tierra Group also provided hydrogeological support for data characterization and developed a conceptual and…

VIEW PROJECT

Minera Plata Real | Los Gatos TSF Design and CQA

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.

VIEW PROJECT

Cerro Negro

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…

VIEW PROJECT

Sepon Mine CQA

Tierra Group performed Resident Engineering and Construction Quality Control/Assurance during a pilot Heap Leach Facility construction, and Life of Mine Heap Leach and Tailings Sorage Facility siting, design, and tailings management at Lane Xang Minerals' Sepon Mine in Laos.

VIEW PROJECT