Isabella Pearl

Project Highlights:

  • Heap Leach Pad Design Peer Review

Tierra Group performed a technical peer review of the Isabella Pearl heap leach facility (HLF) owned by Gold Resource Corporation. Isabella Pearl mine is located at the west end of the Santa Fe mining district in the Walker Lane gold belt about 6 miles northeast of Luning, Nevada, in Mineral County. The HLF will have a nominal throughput of 8,000 tons per day over a period of 15 months following of pre-production development and construction. Tierra Group performed the review with the following objectives:

  • Peer review the existing engineering design and drawings to ensure the proposed engineering design is adequate and in conformity with accepted engineering practices;
  • Identify opportunities to “optimize” the design to potentially reduce capital or operating costs; and
  • Identify associated risks (regulatory, financial, construction schedule, etc.) with implementing optimization.

Tierra Group identified a number of optimization opportunities and provided design enhancement recommendations to potentially reduce capital or operation costs.

Project Highlights:

  • Heap Leach Pad Design Peer Review

Similar projects

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.

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

Minera Plata Real | Los Gatos Project

Tierra Group provided detailed Stage 1 and 2 Tailings Storage Facility design, conducted a process plant geotechnical foundation investigation, and provided Construction Quality Assurance for Sunshine Silver Mining's Los Gatos Project in Chihuahua, Mexico.

VIEW PROJECT

Topia Mine

Topia Mine Phases 1-3Tierra Group supervised the first 3 phases of Geologic Mapping and Instrumentation Installation and developed a Mechanically Stabilized Earth Wall Design at Great Panther Silver’s Topia Mine in Durango, Mexico.

VIEW PROJECT

Midas Gold Project

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…

VIEW PROJECT

Morelos Mine

Tierra Group designed and implemented a stability and safety monitoring plan for Torex Gold’s Morelos Mine dry stack tailings storage facility (TSF). The monitoring plan includes installing inclinometers and vibrating wire piezometers, and training operations staff to download instrumentation readings.…

VIEW PROJECT

Mexican Hat PEA Update

Tierra Group conducted an update of the Mexican Hat Project’s Preliminary Economic Assessment. Tierra Group’s update included the heap leach facility design and preliminary stacking plan, waste rock storage pad, and crushed rock storage pad design.

VIEW PROJECT

Tajo Crimea Project

Tierra Group evaluated geotechnical and hydrogeological characteristics of Tajo Crimea Pit to determine in-pit tailings storage feasibility. The project scope defined geotechnical and hydrogeologic site conditions through field investigations, and in-situ pump testing. A 3D groundwater model was developed to…

VIEW PROJECT

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…

VIEW PROJECT

Robinson Mine Trade-Off Study

Tierra Group completed a trade-off study to evaluate raising the existing Tailings Storage Facility (TSF) or building a new TSF at KGHM's Robinson Mine in White Pine County, Nevada. An Alternatives Decision Matrix (ADM) was developed using weighted qualitative and quantitative parameters…

VIEW PROJECT

Hod Mine Waste Dump and Surface Water Management Design

Tierra Group provided design review and technical direction at Hod Mine in the Artvin Province of Turkey. Work included detailed design of potentially acid generating and non-acid generating waste dump facilities, their appurtenant structures and stormwater management design for the…

VIEW PROJECT

Marlin Mine

Tierra Group provides Tailings Stewardship Services for the Marlin Mine Tailings Storage Facility. Tierra Group performed a 5-year Dam Safety Review consistent with the Canadian Dam Association protocols, a Facilitated Risk Assessment, site training and in depth inspections of management…

VIEW PROJECT