Carrying a 60-pound backpack in Colorado’s rocky wilderness is hard. If you are used to breathing air at sea level, the high altitude makes it even more physically grueling. When our guides stopped and surveyed the land with a puzzled look, my heart sank. Something was wrong. We should have come to a creek, which would confirm we were on the right track. But it wasn’t there. We had taken a wrong turn. Eventually, we backtracked and found the correct path and the creek.