At the back of a Riverdale yard the mown grass usually stops at a wall of trees, because the Ramapo foothills begin right about there. All American Decks keeps the lawn side of that line — mowing, string trimming, edging and hauling the clippings off, with cleanups at both turns of the year to clear whatever the woods send over. September evenings come early to the borough as the hills take the sun, and a yard cut that afternoon holds its lines in the low light. Hedges get shaped and borders get held where the wild edge presses in. It is a small borough with a lot of edge to it, and edges are where a lawn is won.