I can't remember how to get there!

Did you try fast traveling back?

No I can't seem to find it since I have a lot of locations on my map. Also, even if I did find it i don't really want to fast travel there :/ I can't quite remember how I got there. Was it a cave you had to go through that had the portal to the vale?

Its an area that is out off the actual map I wanna say the west but can't be sure until Im home, once you find the actual vale on the map there should be a cave nearby called Darkfall Cave

It is in the north western corner of the map.

As Ecrulis says it's called Darkfall Cave it's North West(ish) of Harmugstahl. Not far from where you found Whatsername Jurard for Isran. That's as clear as mud but I hope it helps.

yeah I want to get it on the map so I can fast travel there from time to time. My favorite place now.

It is very far left and to the top of the map. You may need to tilt up and to the left in order to see it. Believe me, you would get tired of having to go through Darkfall cave, passage, portal over and over to get there. Much better to fast travel. Once there you arrive at one of the shrines. From there you can take a portal to most places in the Vale. The Shrine of Resolution is closest to the Flamer Canyon and Paragon Portal. The Balcony portal will take you to Gelebor.