Just hit it!! Promontory, UT. Meeting of the UP and CP and the driving of the Golden Spike. Part of the Golden Spike National Historic Site and Visitors Center.
I was, like you I think, looking for gold mining sites. Kennecott Copper was about the only thing showing up! So, as I sat here, dumbfounded, for some odd reason, I thought Gold Spike?? And immediately checked my suspicion. Amazed myself, with a lucky guess. This time! I was going crazy until then!
Yes, it would be the Golden Spike National Historical Site! So, Keith you are the winner. Finally, we can all move on to the next one.
Have one idea saved. Will look into a couple more in the next day or two. Need to swap computers anyway, in order to save photo locations and post! Now that pain has subsided, maybe now I can get BACK to sleep!!