…the process remains much the same: Drill holes, load explosives, close up the holes, blast and muck out the resulting broken rock.

…there is an easy way to create a reasonably accurate map without any fancy instruments.

Let’s take a look at these important property aspects individually, because they all affect the value of a property and how much mining companies might or might not be interested acquiring it.

For simplicity, I will assume that you wish to make enough profit so that you can comfortably pay your bills using just the profits from the mine.