iron mine of moladune?

can anyone tell me where this is? is this the iron horse mine?

from yak's bend, travel into traveler's vale and when u first leave head towards the right, and its a bit aways, and then u hit an instance, and take another right after the instance, and thats as far as ive gone, but i think its in that direction

No, it's not the Iron Horse Mine.

One is a post-ascension coop mission, and one is an explorable area.

IIRC, Iron Mines of Moladune is a bit northeast of Droknar's Forge. Don't quote me on that, though.... I often get the Southern Shiverpeak missions mixed up.