When runoff comes down the Cache la Poudre in June, the cottonwoods at Lee Martinez Park go loud with wind and the river carries half the mountains past town. Evergreen Landscape & Sprinkler Co. keeps the lawns near that green corridor mowed, trimmed, edged and cleared as the year works its way through them. Then the river narrows, the leaves come down, and the work turns to snow — plowing drives, clearing walks, breaking ice where shade holds it well into the afternoon. Fort Collins asks both trades of anyone who wants a property looking cared for the whole way around the calendar. The river manages without help; the yards need a hand.