A cloud crossing the sun at 7,700 feet drops the temperature ten degrees before it's finished crossing, and Gunnison lawns grow in that flickering light all summer. Rocky High Services works with it — mowing, string trimming, edging and cleanup, scheduled around the wind that shows up off the flats most afternoons. Thin air and hard sun mean turf here wants a taller cut than it would anywhere lower down, and a blade sharp enough not to tear what it takes. Clippings come off the concrete, corners get squared, and the yard is left looking finished rather than merely cut. Lawn care for Gunnison and the valley around it.