Late in the day the water behind Coolidge Dam turns the color of struck copper, and San Carlos settles into the cool that follows the heat. Eduardo's Landscaping keeps yards here mown, edged and cleared, working the shaded side of a property first and finishing where the sun lets go last. A lawn on the Gila's high ground earns every inch of green, so the trim line along a walk is drawn slow and held straight. When the monsoon finally breaks over the ridges, the grass answers within days, and the raking that follows is half the labor and all the reward. Yards in San Carlos, Peridot and the stretch of Highway 70 between them get the same steady attention.