George was considering filling his dredge floats with closed-cell foam, ensuring that there would be no area available within each float for flooding.

Since we know that the secret to breaking rock is applying force from the inside out (putting tension on the rock), we will be looking at ways we can generate force using human and machine power.

Whatever system you plan to use will require a way to safely initiate the explosives from a distance. In this article, we’re going to learn the basics of electric blasting and get a hands-on example…

One of the issues that prospectors run into when working to upscale from micro-scale hard rock testing to a greater production output, is that they often confuse individual devices or machines with systems.

Historically, Montana has been an important gold producer, in terms of both lodes and placers, and it still produces gold for the prospector today.