UPDATE: This post was originally published on April 18, 2017 and has been updated on May 24, 2019 to reflect the change in ownership and other details for Black Chasm Cavern. The operation was sold in December of 2017 and is currently owned and operated by Gold Country Adventures. Although not a whole lot has changed, the new company’s website is not nearly as informative as that of the previous company and there are very few photos. I hope you find this blog post and the updates in it helpful. If you drive through Pine Grove on Highway 88/104 in Northern California, you will most likely notice the signs for Black Chasm Cavern at Pine Grove-Volcano Road. It’s hard to miss them. I have seen these…
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