Colorado likes to hand out an October surprise: eight inches on trees that have not dropped a leaf yet, branches bowed low over Happy Canyon Road, the whole morning gone quiet by breakfast. Nelson Lawn & Landscape LLC is set up for both halves of a day like that — snow off the drives and walks, ice knocked down at the bottom of a slope, and then, once it melts off by Thursday, the season's last cut and the fall cleanup finished on schedule. Through the warm months the work is steady maintenance: cutting, edging, trimming, beds kept clean, lawns held even from one week to the next. The reward is small and concrete — a driveway you can back down without thinking, a yard that plainly gets looked after. Castle Rock and the neighboring stretches of Castle Pines, Lone Tree and Sedalia.