Dun Morogh is a snowy region located between the magma-strewn wasteland of the Searing Gorge to the south, the gentle ridges of Loch Modan to the east, and the swampy Wetlands to the north. Dun Morogh is home to both the gnomes of Gnomeregan and the Ironforge dwarves and is the location of the major city of Ironforge. The Khaz Mountains surround Dun Morogh on all sides, making it accessible only by certain passes that are currently watched over by dwarven troops.

The center of dwarven culture and ingenuity, Dun Morogh holds the capital of Ironforge. The region is snow-swept and forested, with gray, craggy mountains and slinking wolves. Troggs recently overran Gnomeregan, the gnomes' former capital, and drove its citizens to Ironforge. Frostmane trolls menace dwarven patrols. Several villages and towns dot the landscape, and though the trade routes can be perilous, dwarven mountaineers and warriors keep their settlements safe.

Homeland of the Ironforge dwarves and ruled by mighty Bronzebeard Clan, Dun Morogh is the center of dwarven culture and ingenuity. The capital city of the dwarven realm, Ironforge, lies within Ironforge Mountain in Dun Morogh's iced heart. Dwarves and their allies range out from Ironforge, trying to hold a diminishing protectorate against encroaching enemies on all sides (Troggs, Trolls, Dark Irons). Dun Morogh is a high altitude region, covered with constant snowfall and great pine trees. Winds howl through the peaks in symphony with the wolves that prowl the crags. Southwest of Ironforge is Coldridge Valley, which hosts the dwarven smithing enclave of Anvilmar. Northwest of Ironforge's massive stone battlements is the ancient city of Gnomeregan. This ruined city was once home to the Ironforge gnomes, but savage Caverndeep troggs devastated the populace and drove the survivors away to Ironforge as refugees. Gnomeregan is now a wild place of adventure and mystery. To Ironforge's west is Frostmane Hold, home of the aggressive Frostmane ice trolls. Crime is almost nonexistent in dwarven lands, as dwarves know that they must stick together against their myriad enemies. Murder and treason are capital offenses, while lesser crimes result in exile or prison.

Centuries ago, the Dark Iron dwarves split from their Ironforge brethren, summoning Ragnaros and devastating the land in the process. The warriors of Ironforge drove the Dark Irons to near extinction, and the few survivors fled deep underground in the Blackrock Mountain to their fiery lord. In the fourth year since the opening of the Dark Portal, Dun Morogh's dwarves and gnomes joined the Lordaeron Alliance in the Second War. Ironforge dwarves and gnomes were key in the Old Horde's defeat, and many nurse grudges against orcs to this day. Not long ago, gnomes in Gnomeregan unearthed the mythic troggs. These tribal creatures slaughtered city of Gnomeregan's populace and drove the gnomes to Ironforge, where they hide and nurse their wounds. This catastrophe explained why Ironforge gnomes did not take part in the Third War. The troggs also prove an excellent distraction for Ironforge's forces, allowing the Frostmane trolls to invade Dun Morogh in an attempt to reclaim their ancient lands.

The snowy peaks of Dun Morogh have been the home of the dwarves and gnomes for centuries. The two races have generally lived on friendly terms, trading between their own respective cities, Ironforge and Gnomeregan. During the Second War, both races joined the Alliance of Lordaeron after the orcs invaded Khaz Modan. Their service proved invaluable to Alliance forces, and between dwarven brawn and gnomish brains, the orcs never succeeded in taking either capital. During the intervening period between the wars the gnomes and dwarves grew closer together, working jointly on a number of major projects. Since the destruction of Gnomeregan, the remaining gnomes have been forced to flee and seek protection within Ironforge. This peaceful region is now threatened by the troggs who have begun appearing all over the area.