Avon keeps two calendars at once. One belongs to the gondola at Avon Station and the skiers riding up toward Beaver Creek Mountain in the dark; the other belongs to the handful of green weeks when everything in the valley grows at the same time. Ethos Landscaping LLC. works both — snow plowing, shoveling and ice control through the long half of the year, then mowing, trimming and cleanups through the short one. There is a particular pride in a driveway already open before the household wakes, and a matching one in a lawn cut before the afternoon heat comes up the valley. Trading one set of equipment for the other is half the job, and this valley never lets that get dull.