Hammerfists of Aladrov
A tear across the mountain range that once held Titan Rahl during the battle between him and Kalazanbaar. After the Titans defeat, Kalazanbaar made it the home of Dwarves under his rule, naming it as such.
Far beneath the surface, into the underdark, a collection of Duegar lived and menacingly sought out alliances with Giants. This new faction would cause a war from under and over Kalazanbaar.
After the war and the surface dweller kingdom of Kalazanbaar was defeated, the Duegar turned on the Giants and made the broken spine their new home.