Upper Blackrock Spire (Classic)

Upper Blackrock Spire is the upper area of Blackrock Spire. The area of the Blackrock Spire instance to the north of the Hall of Blackhand is commonly known as Upper Blackrock Spire. It is treated as an independent instanced dungeon from Lower Blackrock Spire, although it is in fact part of the same, huge instance.

The instance is a raid with 10 player cap. After patch 4.0.3a it was updated to be a 5-man dungeon. Before patch 3.0.8 the raid required completion of the quest Seal of Ascension (quest), to acquire the Seal of Ascension. After the patch this was no longer needed, as the door that lead to Upper Blackrock Spire was now permanently open.

To enter the Upper Spire, use the same raid entrance as the Lower Spire and follow the left wall as you enter. You will ascend a small flight of stairs and into a hall with smaller side chambers. Each chamber is filled with mobs and a small glowing rune. Defeating the mobs in a chamber will deactivate a rune and once each has faded, a double door at the back of the hall will open.

Removed quests
These quests were removed from the game even before the dungeon was overhauled in Warlords of Draenor.

Azshara
Obtained from Duke Hydraxis on the island northeast of the southern peninsula of Azshara
 * Poisoned Water Takes you to the Eastern Plaguelands (No longer obtainable after patch 3.0.8)
 * Stormers and Rumblers Takes you to Silithus
 * Eye of the Emberseer (quest) Takes you to Upper Blackrock Spire
 * The Molten Core (quest) Takes you to the Molten Core
 * Agent of Hydraxis Back to Silithus or the Molten Core
 * Hands of the Enemy
 * A Hero's Reward

Badlands

 * The Darkstone Tablet (Horde)

Burning Steppes

 * Broodling Essence (quest): (Burning Steppes) Given by Tinkee Steamboil in Flame Crest
 * Felnok Steelspring (quest): (Winterspring)
 * Chillwind Horns: (Winterspring)
 * Return to Tinkee: (Winterspring)
 * Tinkee Steamboil (quest): (Burning Steppes)
 * Egg Freezing: (UBRS) First quest in the chain to enter Blackrock Spire
 * Egg Collection (Classic): (UBRS)
 * Leonid Barthalomew (quest): (Burning Steppes)
 * Betina Bigglezink (quest): (Eastern Plaguelands)
 * Dawn's Gambit (quest): (Scholomance) GW, Allakhazam)

Lower Blackrock Spire

 * General Drakkisath's Command (quest) Starts from an item of the same name dropped by Overlord Wyrmthalak in LBRS
 * General Drakkisath's Demise Given by Marshal Maxwell in Morgan's Vigil in the Burning Steppes, enters UBRS

Orgrimmar

 * For The Horde! (quest) (reqs Warlord's Command)

Stormwind

 * Mayara Brightwing (quest) Given by Count Remington Ridgewell in the Petitioner's Chamber in Stormwind Keep
 * Doomrigger's Clasp (quest) Given by Mayara Brightwing in Morgan's Vigil in the Burning Steppes, enters Blackrock Spire
 * Delivery to Ridgewell Again given by Mayara, takes you back to the Keep

Upper Blackrock Spire

 * The Matron Protectorate Given by Awbee just as you exit Blackrock Stadium, this quest chain leads to epic plate and mail armor
 * Wrath of the Blue Flight Given by Haleh in Mazthoril
 * Wrath of the Blue Flight Again given by Haleh
 * Catalogue of the Wayward (quest) Given by Jeziba in the Ruins of Andorhal in the Western Plaguelands
 * Breastplate of the Chromatic Flight (quest) Obtained by reading the Catalogue of the Wayward
 * Legplates of the Chromatic Defier (quest) Obtained by reading the Catalogue of the Wayward
 * Finkle Einhorn, At Your Service! (quest) Given by Finkle Einhorn in The Furnace, after he emerges from the belly of The Beast
 * Blackhand's Command (quest), to open Blackwing Lair

Winterspring

 * Drakefire Amulet (quest) Given by Haleh in Mazthoril.  This is the final step of the 16 part quest chain that begins in the Burning Steppes ends with the Onyxia key. This quest seems to have been removed, as you no longer need the key for Onyxia's Lair.
 * The Demon Forge (requires Armorsmith specialization)

Achievements

 * Upper Blackrock Spire (Classic) (achievement)
 * Leeeeeeeeeeeeeroy!