From WoWWiki

The Grizzled Den is a rather large cave system just southwest of Kharanos in Dun Morogh, where young adventurers can test their mettle against the ferocious wendigos which live there. Many enter in search of wendigo manes, which are popular for use in seat covers, but it is a risky proposition as the monsters breathe frost spells and flock together to drive the assailants out.

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