Venture Gold Inc. has established a fully permitted mill site at Hukill Gulch in Clear Creek County, Colorado. This facility is designed to process sulfide ores containing gold and silver. Currently, the mill operates at a capacity of 60 tons per day on a stand-by basis, with plans to upgrade to 300 tons per day to support the Old Town Mine Project.
Old Town Mine Project — 2023 Technical Report Read Post »
SRK’s work for EV Nickel on the Ontario project uses lab testwork by Corem, and notes that no comminution tests are done yet, so mill power estimates are not available.
Omai Gold’s 2026 preliminary economic assessment sets out a far larger design than the 2024 study on this page, with a primary gyratory crusher, SAG and ball milling to 75 µm, gravity recovery, a 34-hour leach and CIL circuit and paste backfill from final tailings.
This NI 43-101 Preliminary Economic Assessment (PEA) outlines the Long Valley Project, a proposed open-pit mining operation designed for the extraction of gold and silver. The project employs a conventional heap leach system operating on a 365-day, 24-hour basis. The processing circuit begins with crushing run-of-mine material to a P80 of 1.5 inches, followed by agglomeration with cement and lime. The material is then stacked on a lined pad and irrigated with dilute cyanide solution to leach precious metals.
Long Valley Project — 2021 Technical Report Read Post »
The December 2021 preliminary economic assessment for Orvana Minerals’ Cerros Taguas oxide resource in San Juan, Argentina, plans three-stage crushing to 100% passing 12.5 mm, a 70-day leach cycle, and average recoveries of 83% gold and 42% silver.
This NI 43-101 Technical Report details the recovery methods and processing infrastructure for the Campo Morado Project located in Guerrero State, Mexico. The facility is designed to treat sulphide ore containing copper, lead, and zinc, with a current throughput ramping up to 2,200 tpd. The plant utilizes a combination of primary jaw crushing, SAG milling, and Vertimill grinding followed by selective flotation circuits for lead and zinc concentrates. Gold is present in the ore as preg-robbing carbonaceous material but is not the primary target commodity.
Campo Morado Project — 2018 Technical Report Read Post »
The San Juan mill, established in 1970, processes ore from various veins using a combination of flotation and Carbon-in-Pulp (CIP) circuits. Currently operating at 350 tonnes per day (tpd), the facility has the capacity to expand to 500 tpd with refurbished ball mills and potentially 700 tpd with further upgrades. The mill primarily handles sulphide ore via flotation, recovering 90% of the gold, while also treating oxidized ore through a CIP circuit with recoveries up to 88%.
San Juan Mine — 2010 Technical Report Read Post »
This report outlines the recovery method for the Granada Gold Project (Gold Bullion), which involves processing ore in batches at the Iamgold Doyon mill (IMG). The mine plans to extract 175,000 to 200,000 tonnes of ore annually at a rate of 550 tonnes per day via open pit mining. Due to capacity constraints and development schedules, the ore will be processed in three distinct batches per year (April, July, November) to optimize mill utilization and avoid freezing muck issues in ore bins.
Prefeasibility Study (PFS) Phase I – Open Pit Granada Gold Project Read Post »
This section of the NI 43-101 Technical Report details the recovery methods employed at the Nechí Alluvial Property operated by Mineros S.A. in the Antioquia Department of Colombia. The operation utilizes four distinct mining methods: bucket line dredges, Brazilian suction dredges, the Llanuras production unit (wheel cutter suction dredge), and terrace mining. Each method employs specific on-board or floating processing plants designed for alluvial gold recovery, with concentrates transported to a central facility for final treatment.
Nechí Alluvial Property — 2021 Technical Report Read Post »
This technical report outlines the recovery methods planned for the Bounty Potash project. The proposed methods are modeled after the Intrepid processing facility at Wendover. The process involves pumping brine into solar evaporation ponds to precipitate salts. The ore is harvested and processed in a mill where potash is separated from salt via flotation. The material is then dried, compacted, and screened. The facility also produces Metal Recovery Salt (MRS) and Magnesium Chloride brine for de-icing.
Bounty Potash Project — Technical Report Read Post »
