The landmark has hydraulic landing gear, 40 lb. LP tanks, Larger fresh water tanks, in the Augusta the two doors for the bathroom are pocket doors, Goodyear G614 tires are standard, place for (2) batteries, battery cutoof switch, Hidden hinges,soft touch ceiling,fluoreescent lights,tinted windows, sealed range, 30 inch convection oven,trim accents around windows.
I wishI could be more precise but Heartland has decided to put what used to be Landmark features into the Bighorns. I am sure that we will see some newer amenities for Landmark but not till after the Louisville show.
Hope this helps a little,
Mark