Underground Mining: Getting the Ore Out
February 2017 by Chris RalphChoosing the right method to move your ore and waste is all about making the right choices. Sometimes more than one method may be used during the life of a mine as an operation expands and grows.
All these decisions and more depend on the richness of a claim—something that is determined by sampling. But sampling isn’t cheap, and even collecting the samples can be more difficult than it appears on the surface.
Centrifugal bowls versus jigs
Most prospectors understand placer mining a lot better than hard rock mining and don’t realize the amount of work that goes into processing different types of hard rock ore.
The same day, while two of us were heading to Vancouver to attend the mining convention, two others from our team were headed to Nevada to begin loading the millsite equipment.
Mining claimants who wish to retain their mining claims on Bureau of Land Management and Forest Service lands through the 2021 assessment year must pay a maintenance fee or file a maintenance fee waiver certificate on or before September 1…
Buying a placer claim or investing in a placer mining property comes with plenty of financial risks. You need as much information as possible about the mineral deposit in order to minimize those risks.
There are currently three controlling agencies or entities over suction dredging in California—and you can make that four if the state legislature decides to further muddy the waters with additional legislation to block suction gold dredging in the state.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts: Looking for help on unproven claim • Calcite and Limestone • Detecting Basics: Lose the Bad Habits Not the Gold • Feather River Gold • Detecting Alluvial Bench Deposits • From Vietnam to Wedding Bands • Trade-Ins, Swaps and Like-Kind Exchanges • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices