The Black River runs straight through Carthage, loud in spring and steaming in January, with the bridge to West Carthage stitching the two villages together. Cornerstone Landscaping works properties on both banks — mowing, trimming, edging and seasonal cleanups in the green months, plowing and clearing once the north country turns white. Snow arrives here in serious quantities, and a driveway opened before breakfast is not a small thing. Summer in Jefferson County is brief and generous; the grass makes the most of it and so does the schedule. A yard held to a straight edge, in either season, is what the job comes down to.