Otter Tail Power - Grant County, SD

That big transformer is still there!

 

I think a "few" years have passed since I was there last. Secondary running into the quarry is most likely going to be 480V (I thought the primary was 12.5kV, but it is actually 4160V).

 

2011: www.flickr.com/photos/71513863@N07/30687223373

Done