Altar of Moorabi
From WoWWiki
The Altar of Moorabi can be found in the Cave of Mam'toth in Gundrak. This altar becomes available to activate once 
Moorabi is killed. When activated the large mammoth head statue will drop into place on a rotating bridge.
This altar is one of three that will cause the bridge to turn allowing the players access to the lass boss Gal'darah.
