Here is a map with all currently known spawn points of the Edge of Reality portal in Gorgrond.
/ way 54 45 Crater
/ way 55.9 40.5 Pools
/ way 51.6 38.8 Open
I didn't write down the names of the people who took the screenshots, but feel free to let me know if you want your name added etc. I will also do my best to add names when I find them again. All the ingame pictures are from wowhead.