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Firelands is a new outdoor raid instance introduced in Patch 4.2, the second major content patch after the release of  Patch 4.1 "Rise of the Zandalari". The Firelands was originally scheduled to be part of the initial release, but was delayed to focus instead on other content. [
] citation needed
Patch 4.2, The Crucible of Flame, Firelands Forgeworks and Firelands Hatchery are part of the Firelands, which are only accessible through flamegates located within Mount Hyjal subzones.
The Firelands is a 10/25-man raid instance with both
normal and heroic modes.
The following bosses are encounterd this raid:
Since this part of the raid is outdoors, these bosses can be fought in any order.
Drops will include
Tier 12 gear and parts for the new staff, legendary and three new mounts including the flaming Anzu. [Dragonwrath, Tarecgosa's Rest ]
Areas of interest
Anvil of Conflagration map
The Firelands raid zones map
Cataclysm - Patch 4.2 Rage of the Firelands
Wowhead News Firelands Normal Mode and Baradin Hold Boss Strategies by Ashelia 2011/07/05 5:41 PM
FranksPlace.org Cataclysm 4.2 Avengers of Hyjal Firelands Faction Grinding Guide
Icy Veins Comprehensive encounter guides for Firelands