The capital of Prince Brendian Erendyl on Arda, and nominal capital of Odin's Folk, Black Rock is one of the two great cities of Westmark. A fortress city on the North Shore of Westlake, an improved lake at the head of the OrrĂ³duinĂ«, or East River, a navigable river that goes North then bends back far to the East. It is primarily a settlement of Norse worshiping Elves from Alfheim under Prince Brendian Erendyl, originally of Mystara, and Norse Worshiping Rohirrim from Vestrhelm who moved to the area.