The Horns of Veithurgard are a set of collectibles located in an optional area off of the Lake of Nine. The passage through to Veithurgard is accessible once the water has been lowered and you open a gate using a wheel on the Northern shores. All the Horns of Veithurgard can be sold for 15,000 Hacksilver once you find them, so it's well worth setting out to discover them all. Here's where you can find each of the six Horns of Veithurgard.
Horns of Veithurgard artifact locations
Horn of Veithurgard 1
The first Horn of Veithurgard Artifact can be found in Veithurgard after passing between the two statues guarding the entrance to the area. Look for the short pier pointing toward the statue of Thor, at the end of it is the Artifact.
Horn of Veithurgard 2
The second Horn of Veithurgard Artifact can be found by exiting the boat at the dock and turning right to find a chain Kratos can pull. Pull it to the bottom and lock it in place by throwing the Leviathan axe at the target to the right. Follow the wall back around the way you came and look for the climbable wall. Climb to the top and turn right, drop down, and look the breakable wooden barricade, behind it is the Horn of Veithurgard.
Horn of Veithurgard 3
The third Horn of Veithurgard Artifact can be found by approaching the dragon in Veithurgard and turning left toward the waterfall. The Horn of Veithurgard Artifact is located behind some objects for Kratos to smash.
Horn of Veithurgard 4
The fourth Horn of Veithurgard Artifact can be found by approaching the dragon in Veithurgard and going left. Head toward the bridge that will now be on your right to find the Horn of Veithurgard Artifact next to a knight.
Horn of Veithurgard 5
The fifth Horn of Veithurgard Artifact can be found in Veithurgard beyond the large locked doors. Unlock the doors by inputting the correct runes (T and R, N and F) and then run up the stairs inside and stick to the left. The Horn of Veithurgard is just past the Jotnar shrine.
Horn of Veithurgard 6
The final Horn of Veithurgard Artifact can be found inside the large double doors in Veithurgard. Head inside the doors after unlocking them by inputting the correct runes (T and R, N and F) and follow the main path until you reach a room filled with water. Use the switch to raise a door, releasing the water, and you’ll spot the Horn of Veithurgard on the ground.