Dry stack tailings, which use far less water than conventional mine tailings, lie at the heart of the Forest Service’s view that the mine won’t contaminate groundwater. The tailings, which are pressed ...

Sierra Madre Gold & Silver Ltd. (TSE:SM) has released an update. Sierra Madre Gold & Silver Ltd. has received approval from SEMARNAT to modify its operating permit for the Guitarra Mine, allowing for ...

The company said it hadn't abandoned earlier plans, the focus of a Minnesota DNR review on whether the mining permit should be denied. Plans for the NorthMet project include building dams to increase ...

The updated study incorporates redesigned dry-stack tailings system engineered to eliminate acid mine drainage and is one of the final ESIA reports. wind-driven erosion from the TSF, emissions ...

Mining Journal, Mining Magazine and Australia's Mining Monthly speaks with SRK Consulting as part of our annual Tailings report. The interview talks through the primary challenges for mining companies ...