Evening light comes off the Androscoggin and lays gold along the old brick mill at the Topsham end of the bridge, and that is the hour a freshly mown lawn looks best. Enzo and son landscaping works the yards above the river and back through the neighborhoods off Main Street — mowing, trimming, edging, cleanups spring and fall. The falls here have been making noise since long before anyone had a lawn to keep, and there is something companionable about working within earshot of them. A straight edge along a walkway, a lawn with no missed strip, a bed line you could draw with a ruler: small things, but they are what people see when they pull in. That is the work, week after week, from thaw to hard frost.