This 1965 edition of the McGaheysville, VA USGS quadrangle shows the Appalachian on its present route from the (then new) Loft Mountain Campground on Big Flat Mountain over (the actual) Loft Mountain and its steep descent to Ivy Creek. This map shows, for the first time, the new Ivy Creek Shelter (as it was then called). The NPS replaced the former Big Flat Shelter with this structure when the Loft Mountain Campground was built on Big Flat Mountain. Even more interesting is the apparent fact that the Big Flat Shelter does not appear on a USGS quadrangle!