http://boards1.wizards.com/showthread.php?t=770454

List of maps:

Hellspike Prison:
Magma Keep
Mushroom Cavern
Hellspike (Epic)

Fane of the Drow:
Mithral Mines
Fane of Lolth
Drow Enclave
Tomb of Queen Peregrine (Epic)

Dragon magazine #337:
Drow Outpost

War Drums starter set:
Dragon Shrine
Broken Demongate
Teleport Temple (Epic)
Field of Ruin (Epic)

Fields of Ruin:
Keep of Fallen Kings I
Dungeon of Blood
King's Road (Epic)

Dragondown Grotto:
Dragon Graveyard
Forest Cliff Lair
Dragondown Grotto (Epic)

Frostfell Rift:
Hailstorm Tower
Caves of Chaos
Frostfell Rift (Epic)

Next FL set: City of Peril