Late in the day the sun drops behind the Front Range and the west face of Green Mountain holds the last of it, so the yards on that slope glow amber for twenty minutes before the cool slides down. Solterra Lawns works under that light — mowing, trimming, edging, clearing clippings off the drives and walks before the shadows reach them. West-facing lots absorb the full weight of a Colorado afternoon, and the grass on them tells you honestly whether anyone has been paying attention. Seasonal cleanups keep the beds and turf from dragging last year into this one. It is a fine hour and a fine hillside on which to do the work.