Out toward Willow Grove the town runs right up against Harriman's tree line, where the woods start and the lawns stop in a single clean border. Natures Keeper and Snow Keeper works both halves of that year, as the name says plainly: mowing, trimming and clearing the yards from April on, then plowing the same drives once the parkland goes silent and white. Deer, leaf fall and forest shade all make an edge lawn its own kind of project, and holding the line between mowed grass and wild woods is half the pleasure. In winter the job shrinks to one thing that matters — a way out to the road, opened early and salted. Lawn care and snow removal at the wild edge of Ramapo.