I am a pudgy guy. It would be hard to picture me hiking up the side of a mountain in snow pants and a jacket, my inhaler safely in my pocket. But there I was, on a two-mile trek with an elevation gain of 2,000 vertical feet ascending Squaw Mountain, in Idaho Springs, Colorado, with a ranger from the Clear Creek district. Our destination was the Squaw Fire Lookout, a place I’d wanted to visit since I first discovered that these towers existed.