The Altamaha moves wide and unhurried toward the coast, and the tupelo standing in its backwaters keeps this valley cooler than the map would suggest. Yards along the water grow in that damp air with a will of their own. Altamaha Landscaping LLC meets them on a set rotation — full cuts, string trimming along fence lines and outbuildings, edges recut where the grass tries to take back the drive. There is a pleasure in seeing a riverside place come out of the summer looking trim instead of overrun. The rounds follow the river and the towns set back from it.