Out at Genesis Point the earthworks of Fort McAllister still hold their shape above the Ogeechee, and the old rice banks surface through the marsh when the light runs low. Heritage Lawn & Landscape Services works in a town that keeps things: mowing on a schedule, edging back the creep along walks, running fence lines, hauling off yard debris. November is the kindest month for it — grass slowing, the river tea-colored, afternoons cool enough to work long. Every lawn kept up is a small argument against things going over. Richmond Hill has always understood that.