[HoosierDaddy]

Right on, Russ. I arrived at a campground that offered "large pull through sites" I called twice the previous week, describing my rig to make sure they had room. When I arrived they told me that the bridge to the large sites was "out" (It had been out all summer) and routed me on a zig-zag through the seasonal sites littered with large rocks on the turns .....It was ugly......
It seems that many of the older campgrounds place the large sites in the back...Probably they were added as the need developed.