Color, that thin slice of the electromagnetic spectrum our eyes can perceive. Shorter than sound and radio, and longer than X and gamma rays the 400-700 nanometer waves we call light are wedged between infrared and ultraviolet. And yet, this narrow range can convey so much. This week, aspen trees are trading their boring green for luxurious gold, yellow and orange, and delivering a show that draws tourists from all walks of life to the mountains. The colors are so vibrant, even cloudy skies couldn’t dim the illusion of sunbathed hillsides set ablaze by some magical power. If you decide to go color watching, grab a donut on your way and watch-out for awestruck amateur photographers risking life and limb to take that perfect shot.