Wow, this brings back memories. In the late ’60s, my family did a lot of rock hounding in the South Dakota back country. Once, we stopped for lunch at a spot overlooking a gulch somewhat wider that this one. My sister thought the eroded tallus looked like the toes of some giant creature, and forevermore, the badlands were the “dinosaur’s toes”.
For more photos of the badlands, check out The Constant Rambler, at http://www.theconstantrambler.com/road-trip-planner-for-custer-park-badlands-and-mt-rushmore-sd/