These are two old abandoned gold rush era mines. It was an 1½ hour drive up a 15 mile dirt road to get there, with just latitude and longitude coordinates for my GPS to follow. And when I got there I found one old upturned car and a large propane gas cylinder both full of bullet holes (hundreds of them) – someone had been using them for target practice, with numerous empty shell casings everywhere. I wandered in cautiously, hoping I wouldn’t alarm some old hillbilly who might be living there with only his shotgun for protection. Luckily, no one there.