Acquisition
Throat of the World, leaning against the Word Wall following the conclusion of the quest Dragonslayer.
If the "Craft Only" patch of Jaysus Swords is installed it can be crafted at a forge with the Steel Smithing perk (your character must also be level 75 or higher to create it).
Crafting materials needed:
Location
Throat of the World
Location at the Throat of the World
Throat of the World on map