The Sword Mountains

The Sword Mountains are a range of mountains located along the Sword Coast of the Forgotten Realms. They stretch from the northern reaches of Waterdeep in the west to the Spine of the World in the east. 
The mountains are known for their rugged terrain, abundant minerals, and dangerous creatures. 
The dwarves of the region have carved out many underground fortresses and mines in the mountains, which have attracted the attention of adventurers and treasure seekers. The Sword Mountains are also home to several infamous pirate dens, hidden valleys, and the infamous Underdark, a massive network of underground caverns and tunnels. 
Travelers are advised to be wary, as the Sword Mountains can be a treacherous and dangerous place to explore.

Notable Locations

Highclaw: A large fortress carved into a mountain peak, it serves as a base of operations for goblinoid tribes in the region.
Firehole Keep: A fortified tower that serves as a hub of trade between the dwarves of the Nether Mountains and the human settlements along the Sword Coast.
Ironfang Keep: A former dwarven citadel that has since been taken over by hobgoblins and used as a base of operations for their raids into nearby human settlements.
Thunderholme: A former dwarven holdfast that has been abandoned for centuries, it is now rumored to be haunted by the spirits of its former residents.
The Glitterhame: A hidden underground complex that serves as a secret base for a group of dwarves who specialize in creating magical arms and armor.