Ok, two gearwheels. Where is the goldmine gone? 
Hi Harlem, If you look at the extreme left of the first picture you'll see the larger of the two gears. When the mine was operating the spool was driven through those gears by a steam engine, later replaced by a diesel engine. Here's a picture of the mine's derrick from the side. The cables off to the left lead to the spools and machinery in the first and second pictures. This mine is at an elevation of approximately 10,750 feet (3,277 meters).
Yeah, David, I remember poking around Jerome. I'd go up there with my folks when we were visiting Phoenix. We made the trip once just after WW II. I was 15, and I'd been driving for two years. I vividly remember driving down the narrow road through the Mingus Mountains -- often on the outside with about a thousand foot drop a couple feet off to the right. I made that trip a few years ago and found that they've made that once exciting drive pretty ho-hum.
Those guys in the river had some pretty big pans, Rob, and most of them were prospecting. Once they found a spot that showed gold they'd stake a claim and dig a gopher hole (technical term). Some paid off, some didn't. If the gopher hole paid off then they'd dig a really big hole, something like the Theresa mine -- the one in the second picture. (A county tourist outfit added the walkway and the fence a couple years ago.)
