Please help me locate this area.... the small triangle area I cannont seam to map...I tried both missions and both outposts...does someone know how to uncover that area? please help
mapping issue
shadowmage316
October Jade
You can't. There are lots of little corners and edges like that which will appear in the dark grey color. That spot is already mapped as much as possible.
Jedi Battousai
You should be able to easily do tyria. Without even the need for a lot of Perdition rock or Hells uncovered. Most of the ring of fire was still under fog when i got my 100%
TomoSojiro
jade and jedi are both correct 
You'll be fine!
You'll be fine!
Diab Soule
Don't worry about it I have huge chunks of Tyria left over and still got 100%.
Dzjudz
I would worry about mapping Perdition Rock first 
.
But the above posters are right. You can't map that area (at least I also couldn't), and you can get 100% in Prophecies with many parts not mapped.
.But the above posters are right. You can't map that area (at least I also couldn't), and you can get 100% in Prophecies with many parts not mapped.
Quaker
There were some areas like that when I did the mapping. Sometimes after walking all around trying to get it I would do something seemingly unconnected, like turn around and face away from it, and they would disappear. However, like everyone says, there is more than enough area to map, to get 100%, so don't spend too long on any one little bit.