Any recommendations for Mine/Dam/Infrastructure visits or tours? A few of the travel experiences I’ve most enjoyed are the Lackawanna Coal Mine tour in Scranton PA, and the Oahe Dam powerhouse in SD. I also got to look around a natural gas pumping station in Armenia which was really cool. No tour there, a guy just saw I was interested and let me in. I’m hoping at some point to figure out how to tour a mine i…