Morning on the Delaware at Callicoon arrives with river mist standing in the valley while the ridges above are already in sun. Green Pro Cleaners works both halves of that landscape — mowing and trimming the steep dooryards and riverside lawns through the mowing season, then plowing and salting those same drives once the hills go white. Sullivan County pitch is unforgiving; a driveway that falls toward the water has to be pushed with some thought about where the melt will run. In summer the reward is grass cut clean to the stone wall; in winter it is a hill you can climb without a second try. The river sets the pace and the work follows it.