Stonetalon Mountains storyline

Stonetalon Mountains is a neutral level 25-30 zone in central Kalimdor. Both Alliance and Horde are led here from Ashenvale, where some of the starting quests for this line take place.

After this zone is complete, or reaching level 30, Southern Barrens and Desolace are possible questing areas

Northwatch Expedition Base Camp, Deep Reaches, and Camp Aparaje/Grimtotem Post
Daily Thinning the Horde

To the Southern Barrens
Nura Pathfinder (quest)

To Desolace
Nothing Left for You Here