Like most subjects of the Lore, there aren't many precise descriptions: Malkstrang is far North at "the very edge of the world".
"The Wharfs at Malkstrang I: "Before the great exile, the wharfs at Malkstrang were the launching point for great sea-faring vessels and the home to mighty conquerors and explorers. Now, thrust unwillingly into the sky, the wharfs are far from the sea. Poised at the very edge of the world, they have become a home only to the vilest of men: gamblers, murderers, thieves, blackmailers, and assorted tricksters."