As you already know Ithildins are ancient symbols that can be seen and collected only when you enter Wraith world. Once you open the second map Sea of Nurnen you can collect remaining 16 collectibles and complete the puzzle image.
If you still haven’t collected all Ithildin on the first Udun map check out our guide Shadow of Mordor Ithildin Locations Guide – Udun map
Harad Basin
Lach Mab Gelebren
Deep inside the cave.
On the top of the platform.
Nau dan I ngaurhoth
The next location is just across from the nearby fast travel tower.
Achortho Vorn
Collectible is hidden item on the upper part of the stone bridge.
Fern Outskirts
Tol acharn
On the one of the bride stone pillars.
Thang Talath
Galad na ‘Lamhoth
Inside the cave.
When you enter the largest cave room, turn right.
Maw of Hope
tolo dan nan galad
Climb up on the tallest tower in the area.
Ithildin is on the inner wall.
A Elbereth Gilthoniel
Jump onto a rooftop and look for the Ithildin on the side wall.
Executioner’s Watch
Naur an edraith ammen
Bellow the stone bridge.
Fort Morn Stronghold
enArdhon
Look for the Ithildin on the bridge near the pile of hay.
On the stone pillar wall.
Mi chand eMorchir
On the stone tower next to the tallest building in the area.
Tirith Mesas
ban a gellatha
On the wall, next to the bridge.
Nin gostatha gwaith
On the lonely stone pillar.
Cape of Nurn
Ah an noded rammas
On the side wall of the ruined stone building.
Nurnen Peninsula Stronghold
An adleithad
When you turn towards the Nurnen Fishery, you will spot Ithildin on a wooden wall.
Watcher’s Landing
nor eduath
On the top of the stone tower at the end of the dock.
