Graniteville and Forge Village were built around water and stone, and the yards there still sit tight against old mill walls and millpond banks. Liam's Lawn & Landscaping works those lawns and the newer ones spread across Westford's hills — mowing on schedule, trimming what the mower cannot reach, edging beds and walks, mulching in spring. When Stony Brook runs high and the leaves come down together, the fall cleanup is the whole job for a few weeks. Cutting grass around stone takes patience and a light hand. The result is worth the fussing: a clean line where turf meets granite, all summer long.