So there was a post with a single picture, of this camp, but no explanation on how to get there. So I finally decided to make a video of myself getting there. I had a mage friend grant me the slowfall buff once, but I believe you could achieve the same large jump with a Noggenfogger...I was just lazy and didn't have any on me at the time.
[ame=http://www.youtube.com/watch?v=BUwSRxUwiNI]YouTube - Dun Morogh Plane Camp[/ame]
PS, someone also posted a while back the gnome camp above Dun Morogh as well, but I also saw no video on how to get there. Here is a link, for anyone wondering. I didn't make it, but it shows that it uses most of the same way to get there as with the plane camp.
[ame=http://www.youtube.com/watch?v=5Gx1_kA9_ss]YouTube - Exploring the area above Gnomeregan[/ame]