I got bored farming this so made a video guide to pass time.
The Achievement "Wheel of Misfortune" is a tiresome farm without some crazy luck. Hopefully this video breaks it down for you so you can crank out around 90 runs per hour. One thing I didn't mention is another tile that is a notification to check the northern spawn is several large pools of tar.
There are 2 tiles that can spawn the "wheel" we are farming. One is north and one is south, I choose to set my waypoint at the south because it is seconds from the southern spawn. Each tile can be:
1) The "Wheel"
2) A spiral fossil with resplindent chest
3) A large 'graveyard' of fossil's with chance for mini-event
4) A large bare circle with resplindent chest
5) Several large tar pits
6) A series of large skulls, typically in a pattern such as a triangle
7) For some reason I think there's another tile that you will want to head north for.. idk I'm tired :).. but the only ones to restart the game are 2-3.
Tiles 2-3, if found at the southern spawn, will guarantee that the northern spawn will NOT have the wheel and you can remake. If you get 4-6 then head north. To do so, go straight north, you will pass by a large crack in the ground. In the middle of the map is a large black area, directly north of it is the second spawn.. so after passing the crack shift a ~40 degree angle east and look for a large rock with a tar pit directly south of it. From that rock, the second tile will always be the next one north east.
Got this achievement while I was uploading the video! GL to the rest of you, despite terrible luck it is NOT bugged (because I sure thought it was).
Tile spawns: http://img96.imageshack.us/img96/7149/desolatesands.jpg
Red circles are things like the waypoint, random dungeons, and the dungeons for kulle's blood.
Green circles are for the larger tiles like for the wheel of misfortune.