Boonton climbs its hill in tiers and the falls in Grace Lord Park keep up their noise all summer, and the lawns on those slopes need a mower that respects a grade. Royal Lawns of Boonton cuts and trims lawns across Montville and the towns beside it, keeping the edges clean where the ground itself never is. On July evenings the light comes long and gold up the hillside streets, and a freshly cut yard glows for an hour. Leaf cleanup follows in the fall, and a spring pass clears whatever winter left behind. A lawn well kept on a hill is a quiet kind of accomplishment.