For those of you who are hikers, you know that all the hard work walking uphill is usually rewarded when you get to the top. I got to prove that again while hiking in the Black Hills just outside Rapid City SD. I also discovered something previously unknown to me. These hills, or at least a depression in them, were home to numerous high altitude balloon experiments beginning in the 1930s. The trailhead on route 16 was unmarked so it really helps to have a local with you 😉 https://en.wikipedia.org/wiki/Stratobowl