You can find the Ragefire Chasm dungeon within Orgrimmar, Kalimdor.
The coordinates of The Drag entrance are (55.8,51.1)
/i Charges at a random player, move out of the way. Breathes flames inflicting fire damage to a player.
2. Dark Shaman Koranthal
/i Interrupt ‘Twisted Elements’. Avoid the purple swirls on the floor.
/i Spits lava at a players location. Get ready to attack when slagmaw emerges at a new location.
4. Lava Guard Gordoth
/i Group will take damage from ground attacks/knock backs. Enrages at 30% health increasing his speed & damage done, nuke boss.