For me seeing these mines was educational and valued.
Cripple Creek is hard rock mining, structurally different than coal mining. Coal mining followed coal seams that often laid on angles between horizontal and vertical. The miners worked in these seams which could be as little as 18" thick, laying on their bellies. The coal would slide down the slope to a cross shaft were a tram waited to be loaded. A miner there would control a "gate" to fill a tram car pulled by mules. The coal dust would preclude seeing anything and the "gate man" would swing his foot over the tram to tell when it was full.
One of the miners working in that mine (which was owned by the town) talked about his early days in the mine and when WWII broke out he enlisted in the Marines---thinking it could not be as bad as that mine
Many of those drift mines became major sources of acid stream pollution because of the dissolved minerals, mostly sulfur in the rock, as the water filtered down from the surface. A good friend of mine ran a survey crew in the early 70's mapping all the sources of flow in one of the streams in the coal area, in preparation of a major abatement project.
"A pessimist sees the difficulty in every opportunity, an optimist sees the opportunity in every difficulty” ---Sir Winston Churchill
"Political extremism involves two prime ingredients: an excessively simple diagnosis of the world's ills, and a conviction that there are identifiable villains back of it all." ---John W. Gardner
“You can’t go back and change the beginning, but you can start where you are and change the ending.” ---C. S. Lewis