Canoe Brook runs thin and clear through August and by January carries a lace of ice along its stones — the Summit year told in one small stream. D&R Landscapers keeps up with both ends of it. The warm months mean weekly mowing, trimming, edging and the long autumn haul of leaves off lawns that sit under old maples. The cold months mean a plow down the drive ahead of the commuter rush and salt where runoff sheets across a walk. Same yards, same trucks, two completely different kinds of early morning.