Tumco is an abandoned gold mining town located in the Cargo Muchacho Mountains along Ogibly Rd, CA. I spent thirteen days off-grid here exploring the many trails. I was fortunate to stop and talk to a few people who seemed to have some luck finding a few small treasures. Some of the folks I met had extravagant setups for mining and rockhounding (gemstones and minerals).
Maybe I should borrow a metal detector is give it a go? "Out west is where you will find gold", they told me.