Oblivion:Black Rock Caverns

Notes
The third zone, Lost Black Rock Chasm, is accessed by activating two handles, one of which is initially invisible and the other is not in plain view.
This cave contains 19 Cairn Bolete plants.
Bugs
 
 
Exterior

The exterior is located at coordinates: Tamriel -19, 26
This location's map marker (M on map) is named Black Rock Caverns (editor name BlackRockCavernsMapMarker).  The entrance door is WNW of the marker, 40 feet away.
1 Wilderness Creature (Forest variety) is near the entrance
2 Chests are located behind the top left and right waterfall
1 Nirnroot is at location N on map
The following plants can be found near the entrance: 5 Clouded Funnel Cap plants, 1 Steel-Blue Entoloma plant, and 1 Tiger Lily plant

 

Zone 1:
 thumb|right|180px|Black Rock Caverns
Black Rock Caverns contains one of the best-kept secrets in Cyrodiil, and as such, requires an unusual amount of exploration before the hidden path to it is revealed. Upon entering from door Out, head down the long corridor, and notice the tunnel to the right leading to door D, one of two entrances to the second zone, Black Rock Main Chamber. Ignore it for now and continue to the first room, dispose of the two bandits, then proceed east to the second room, which contains more opposition and three chests with minor loot. Two choices are available; either backtrack to door D, or enter Black Rock Main Chamber through door C. Using door D is slightly more convenient for completionists, but will land you near a Tripwire in the next zone, so do not rush. 

When you return to this zone (after activating the handle at I in the second zone), the handle at G will have spawned, along with two ghostly Black Rock Pirates. Kill the ghosts, then locate the initially non-existent handle and turn it. When you are done, reenter Black Rock Main Chamber through door C.

Occupants:
4 Bandit Enemies (each 50% probability melee , 25% archer Bandit, 12% Dog, 12% Nuisance Animal)
2 Black Rock Pirates (non-respawning) (only after activating the handle in Black Rock Main Chamber)
Treasure:
2 Chests 01 (1 locked)
1 Chest 04
The following plants will always be found: 13 Cairn Bolete plants
Doors and Gates:
There are three doors in/out of this zone
1 door (at Out) leads outside
2 doors (at C and D) lead to the zone Black Rock Main Chamber
Other:
1 Turn Handle at location G on map (only after activating the handle in Black Rock Main Chamber)
2 bedrolls at b

 

Zone 2:
thumb|right|170px|Black Rock Main Chamber
If you arrive to the Chamber from door C, you are most likely detected by the residing enemies, including a boss-leveled Bandit at A. If you arrive from door D, make sure to avoid the Tripwire (G) and the corresponding Swinging Log at F. Regardless of your choice of entrance, loot the chest near the trap and search the large camp for valuables. When done, search the southeastern wall for a turn handle (I) cleverly hidden behind a rock jutting out of the wall. Activating this handle makes an initially invisible handle appear in the first zone, and it also raises the nearby rock wall at H, making door C the only available option. Additionally, turning the handle also spawns two Black Rock Pirates in the first zone, so be prepared for a surprise attack.

After turning the initially invisible handle in Black Rock Caverns you will return to this zone through door C. Check out your map and notice that a trap door leading into Lost Black Rock Chasm has spawned at E, visualized by a blue mist rising from below. The secret is revealed and will net you loads of treasure protected by hard-to-kill ghosts, so equip yourself accordingly before entering the Chasm. 

Occupants:
1 boss-level Bandit at location A on map
0-1 archer Bandit
0-1 melee Bandit
Treasure:
3 Chests 01 (1 locked)
1 Chest 03 (locked)
The following ingredients will always be found: 2 Carrots
The following plants will always be found: 6 Cairn Bolete plants
Traps:
1 Swinging Log trap at location F on map
1 Tripwire trigger at G
Doors and Gates:
There are three doors in/out of this zone
2 doors (at C and D) lead to the zone Black Rock Caverns
1 door (at E) leads out of dungeon to Lost Black Rock Chasm (only after activating the handle in Black Rock Caverns)
1 Rock Wall (initially open) at H (will close permanently after activating the handle at I)
Other:
1 Turn Handle (first) at location I on map
1 bedroll at b

 
Zone 3:
thumb|right|200px|Lost Black Rock Chasm
thumb|right|A secret hidden deep inside Black Rock Caverns
The ladder (E) leads right down to a Dead Bandit (H), lying in a pool of his own blood. As you make your way down through the spiraling tunnel, you will have to step over three additional dead bandits and a few skeletons until you arrive near the Rock Wall at G, lowered by the nearby turn handle (cyan dot on map).  The rock wall reveals the incredible sight of a landlocked pirate ship docked in knee-deep water and three ghostly pirates wandering about chatting to each other, like nothing has happened. They will attack you on sight, so be prepared. In the eastern alcove, the Black Rock Captain (A) guards the Black Rock Chest, and two additional chests, all three worth fighting for. In the unlit brazier, a selection of jewelry is halfway hidden under the sack. Another chest is located on the ship itself, near the steering wheel, while the last chest can be found in the narrow space southwest of the ship. Make sure to examine all of them as they can contain a considerable amount of gold. When you are done, backtrack to the Rock Wall and lower it using the push button then make your escape via the ladder at E. 

Occupants:
1 Black Rock Captain (non-respawning) at location A on map
3 Black Rock Pirates (non-respawning)
Treasure:
Black Rock Chest (contains enchanted light armor, enchanted weapon, leveled gold, 25% chance jewelry, 10% soul gem, 25% stealth potion; non-respawning)
3 Chests (contains healing potion, 5% chance magic weapon; non-respawning; 2 locked)
1 Chest 04
The other following items will always be found: 1 Flawed Emerald, 1 Flawed Topaz, 1 Pearl, 1 Ruby, 1 bottle of Tamika Vintage 399, and 2 Steel Cutlasses
Some of the above items are clustered at location F: 1 Chest (contains healing potion, 5% chance magic weapon; non-respawning), 1 Chest 04, 1 Flawed Emerald, 1 Flawed Topaz, 1 Pearl, 1 Ruby, and 1 Steel Cutlass
Doors and Gates:
There is one door (at E) in/out of this zone, leading to the zone Black Rock Main Chamber
1 Rock Wall (opened remotely) at G
Other:
5 Dead Bandits (wearing light boots and cuirass, 25% chance poison) at locations H on map