By September the aspens above Lake Creek turn all at once, and the willow flats below Twin Lakes go rust and gold inside of a week. Twin Creeks Landscape Group spends that stretch doing what mountain yards actually need — mowing, trimming, edging, and gathering up the season's fall of leaf and needle before the ground locks tight. Summer work is simpler and sweeter: keeping lawns level and green in a place where green has to be earned an inch at a time. It is careful, unhurried maintenance for a town of a few hundred people set between two glacial lakes with the Continental Divide standing over them. The reward is a property that looks tended in a landscape that mostly does not.