From WoWWiki

Thorium Point^{[36, 27]} is a small, neutral camp in northern Searing Gorge inhabited by the Thorium Brotherhood. It has a flight path and the majority of the quests in the Searing Gorge as well as a couple of vendors. It is located northeast of Firewatch Ridge and is populated mostly by neutral Dark Iron Dwarves. It is a critical hub for farming Thorium Brotherhood reputation.

Subzones of Searing Gorge
Blackchar Cave • Blackrock Mountain • The Cauldron • Dustfire Valley • Grimesilt Dig Site • Firewatch Ridge • The Sea of Cinders • The Slag Pit • Stonewrought Pass • Tanner Camp • Thorium Point