Fifth Wheels Fifth Wheels. 2011 Landmark LM Grand Canyon 3 SLIDE / DUCTED ROOF AC / LARGE 4 DOOR FRIDGE / WASHER DRYER CONNECTIONS FIFTH WHEEL! Heartland's Flagship Coach -- the LANDMARK Featuring new exterior graphics and three elegant interior decors to choose from. Each Landmark floorplan now comes with our suites bedroom / bathroom arrangement featuring a large linen closet with room for a stackable washer / dryer 30 percent larger walk-in front wardrobe a 30 percent larger dresser with six larger drawer and overhead cabinets...