Tierra Group avanzó el diseño de TSF a un nivel de viabilidad de acuerdo con el Instrumento Nacional Canadiense NI 43-101 y la subparte SK-1300 de la regulación de la Comisión de Bolsa y Seguridad de EE. UU.
El alcance del trabajo de Tierra Group incluyó una investigación geotécnica, análisis de ingeniería y diseño de TSF.
Tierra Group advanced the TSF design to a Feasibility Level according to the Canadian National Instrument NI 43-101 and the U.S. Security and Exchange Commission’s Subpart SK-1300 regulation. Tierra Group’s scope of work included a geotechnical investigation, engineering analysis, and TSF…
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…
Lode-Star Gold, Inc., in advance of their proposed mining operations, submited a Physical Separation Facility application with the State of Nevada for their Goldfield Bonanza Project located in Esmeralda County, Nevada. The mine, located in the historic high-grade gold-bearing district of…
Tailings Management Assurance Review Tierra Group served as the Lead Auditor and conducted MARs for the TSFs at this confidential project. Tierra Group reviewed all available facility documentation, including OMS Manuals, EAPs, design reports, As-Built Reports, annual inspection reports, and other…
Tierra Group performed Dam Safety Reviews (DSRs) for Nyrstar’s tailings storage facilities (TSFs) located in Tennessee, United States. Tierra Group served as the Tailings Reviewer to ensure conformity with local regulations, the Nyrstar Tailings Storage Facility (TSF) Standard, and to…
2023 Dam Inspections/Review Tierra Group completed a site visit to inspect three tailings storage facilities (TSFs) and the Evaporation Pond. In addition to the site visit and dam inspections, design and monitoring reports (prepared by others) were reviewed for each…
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 assisted the Bald Mountain Mine Project Development Team with an evaluation of potential uses for spent ore on legacy heap leach facilities. Tierra Group completed a collaborative trade-off study with site personnel evaluating spent ore use as overliner…
Tierra Group supported proposed Rapid Infiltration Basins Geotechnical Investigation at Au-reka Gold Corporation’s Cove Project in Nevada. Investigation included borehole drilling, test pits, infiltration testing and permeability testing.
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…
Dry Stack Tailings Storage Facility Tierra Group designed a dry stack TSF to store excess tailings from the underground paste backfill. The dry stack TSF was challenging, given the limited land area, steep terrain, seasonal cold weather, and surface water…
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…
Core Values
Logo
Founders
Team
Clients
History
Featured Teammates
Geotechnical
Water Resources
Civil
Environmental
Geohazards
Projects Map
Geotechnical
Publications
News