From WoWWiki

The Tundrid Hills are located south-central Dun Morogh west of Gol'Bolar Quarry. The hills are home to several species of hostile wildlife, and few travel here without a weapon handy. Sometime, adventurers use the Tundrid Hills as a shortcut to travel between Coldridge Valley and eastern Dun Morogh, although this is a significantly more dangerous route than following the road through Kharanos.

Subzones of Dun Morogh

Amberstill Ranch • Anvilmar • Brewnall Village • Chill Breeze Valley • Coldridge Pass • Coldridge Valley • Frostmane Hold • Gates of Ironforge • Gnomeregan • Gol'Bolar Quarry • Gol'Bolar Quarry Mine • The Grizzled Den • Helm's Bed Lake • Iceflow Lake • Ironband's Compound • Ironforge • Kharanos • Misty Pine Refuge • North Gate Outpost • North Gate Pass • Shimmer Ridge • South Gate Outpost • South Gate Pass • Steelgrill's Depot • Thunderbrew Distillery • The Tundrid Hills