Upside Down Under: The marvel that is Garrison Dam...

Since July 4, my wife and I have had two opportunities to drive across Garrison Dam. The first trip’s destination was Rapid City and the second, Beulah. I drove the first time and she drove the second time.

Have you ever taken a close look at that dam? It’s an incredible feat of engineering. Because I was the passenger the second time, I looked at things I don’t normally get to see as a driver. An...