Just south of town the shale ledges step down toward Letchworth's north gate, and the yards up on those terraces have to be mowed with an eye on the grade. Rock Ridge Designs, LLC works Mount Morris lawns on level ground and hillside alike — cutting across the slope, trimming along the stone walls, edging beds so the mulch line curves the way the land does. Spring cleanups open things up after the thaw; the fall leaf work runs until the oaks finally let go, which they take their time about. Grass kept even on a hillside is harder than it looks and better to look at when it is finished. This is gorge country, and it deserves a yard that fits it.