Obfuscator writes: We enjoyed a typical continental breakfast at our motel in Rexburg, before departing for the north. Waffles are good. We had scoped out a couple of potential spots, using the motel's tourism material in the room. One site they mentioned was “The Civil Defense Caves.” The only directions we got from the material was that they were “several miles past the Sand Dunes,” which we had luckily found the day before, and that we should watch for the signs. Another was Cave Falls, in the southwest corner of Yellowstone, a part of the park available only from Idaho. We drove about 15 miles past the Sand Dunes without finding any signs to any caves. At that point we decided that if they were still around, they weren't this far out, and we turned around.
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