Mining is an area with a very high riskware ratio. 100 years ago, mines were found by surface prospecting. You mind some ore, be it gold, silver, copper, zinc. and you dig a hole and manually remove the ore. You have seen the old movies with the
quintessential bearded prospector. Back in those days a lot of land was state/federal/crown land. You could get a prospectors licence and stake land. This consists of placing a number of wooden stakes in a more or less North-South grid, with you name date and licence number - which was then filed with the relevant government. That gave you the right to exclude others and explore the claims for minerals for 2 years, after which it could be renewed for an additional fee and you also had to file a geologists report on the work you did of a certain minimum value. You could keep doing this and if you had a potential mine, you could ask for a mining lease, and if granted take bulk samples or did a mine - usually by rock blasting in hard rock, but could also be with a grader if you mined aluminum bauxite.
about 1 in a 100 surface prospects end up in a mine. Mines can be immensely profitable.
A case in point.
Foran Mining was 12 cents 2 years ago. (
https://foranmining.com/)Since then their copper/zinc/gold mine has drilled and proven 40 million tonnes of ore, and it looks as if it will end up between 60 and 80 million tons. This mine will last for 50-60 years and then it will be a worthless hole in the ground. Once in production in 3 years it will head for $40-50 per share from the current $2.50
So 100 holes = 1 mine. That can be 99 crooks and one good prospector, or even 100 good honest prospectors, of which one was lucky and 99 not so much.
The truth is mines are very profitable, and the trick is to find one. Modern mine discovery is driven by geophysics, since most of the rich surface showings have been found in hard rock areas. Over the next 2-3 years Foran will start producing Copper, Zinc and gold for the next ~~ 60 years and will reward investors well and will pay a cash dividend for ~~60 years...