North of Fort Collins the land runs flat and open toward the Wyoming line, and the irrigated squares of green out there are startling against the tan of everything else. Korby Landscape LLC works that contrast for a living around Wellington — mowing, trimming and edging lawns through a growing season that asks for water and attention in equal measure. At midday in June the sprinklers throw light across a fresh-cut yard and the stripes hold for days. In winter those same properties get plowed and shoveled, drives and walks opened after storms stall against the mountain front and slide out over open country. Green in one season, bare and clear in the other — both are simply a matter of keeping a place in hand.