The Poesten Kill leaves the Rensselaer Plateau in a hurry, dropping over Barberville Falls before it heads down toward Troy, and the hill country it drains stays green well into fall. All American Lawn Care Services mows that hill country — cutting, trimming and edging lawns around Poestenkill and out the roads toward Averill Park and Wynantskill, with cleanups when the season opens and again when it closes. Sloped yards up here are their own craft: mowing across the grade, holding the deck level, never tearing the turf on a wet morning. Done right, a hillside lawn reads as one smooth sheet of green from the road below. That is worth the extra pass.