Oblivion:Arrowshaft Cavern

Notes
This cave contains 52 Cairn Bolete plants and 57 Wisp Stalk plants.
You have a 10% chance of meeting an Orc Adventurer here, in Arrowshaft Cavern Subtarrane.

 
Exterior

The exterior is located at coordinates: Tamriel 42, 0
This location's map marker (M on map) is named Arrowshaft Cavern (editor name ArrowshaftCavernMapMarker).  The entrance door is SE of the marker, 30 feet away.
1 Wilderness Creature (Mountains variety) is near the entrance
1 Wilderness Creature (Valley variety) is near the entrance
The following plants can be found near the entrance: 13 Foxglove plants, 5 Green Stain Cup plants, 1 Monkshood plant, and 4 Summer Bolete plants

 
Zone 1:
thumb|right|231px|Arrowshaft Cavern
Arrowshaft Cavern is a fairly linear cave but is worth exploring for the relatively huge amount of treasure. Upon entering from door Out, make your way to the first room, unlock the chest and dispose of the opposition. Continue forward through the tunnel and choose the path to the right in the next room, as it leads to a dead-end with two minor loot chests. Backtrack and pick the other path for two additional chests and follow the southern tunnel to the trapdoor at C, the entrance to  Lower Arrowshaft Cavern. 

Occupants:
7-11 Mixed Monster/Animal Enemies (each 80% probability Monster/Animal, 20% Rat)
Treasure:
5 Chests 02 (3 locked)
2 Chests 03
The following plants will always be found: 12 Cairn Bolete plants and 5 Wisp Stalk plants
Doors and Gates:
There are two doors in/out of this zone
1 door (at Out) leads outside
1 door (at C) leads to the zone Lower Arrowshaft Cavern

 
Zone 2:
thumb|right|247px|Lower Arrowshaft Cavern
This area is less linear than Arrowshaft Cavern but is easy to navigate. The amount of hostile occupants depends on your luck, but heading west through the two larger rooms will net you three minor loot chests; be careful however, as the monsters can easily group up on you. Locate the large tunnel to the east and ignore the trapdoor to the third zone for now, as the last two rooms contain two minor loot chests, one of them locked. Lastly, enter the final zone, Arrowshaft Cavern Subtarrane via the entrance at D. 

Occupants:
2-6 Mixed Monster/Animal Enemies (each 80% probability Monster/Animal, 20% Rat)
2-5 Monster Enemies (each 80% probability Monster, 20% Rat)
Treasure:
1 Chest 01 (locked)
1 Chest 02 (locked)
2 Chests 03
1 Chest 04
The following plants will always be found: 22 Cairn Bolete plants and 16 Wisp Stalk plants
Doors and Gates:
There are two doors in/out of this zone
1 door (at C) leads to the zone Arrowshaft Cavern
1 door (at D) leads to the zone Arrowshaft Cavern Subtarrane

 
Zone 3:
thumb|right|342px|Arrowshaft Cavern Subtarrane
The Subtarrane is the largest area of the cavern, and is slightly more important as it contains a boss-level chest at location B. The first room is quite large and is guarded by up to four enemies; it contains a pit dividing the two upper levels with a narrow bridge in between. Cross the bridge and loot the chest on the other side, then head east through the tunnel and prepare for a possible encounter with an Orc Adventurer at O. Follow the tunnels all the way to the final room and dispose of the boss leveled monster at A and claim the contents of the chest at B. Finally, backtrack all the way to the entrance at D and reenter Lower Arrowshaft Cavern. 

Occupants:
1 boss-level Monster at location A on map
1 Orc Adventurer (10% chance of appearing) at O
3-8 Monster Enemies (each 80% probability Monster, 20% Rat)
Treasure:
1 boss-level Chest (Monster variety) at location B on map
2 Chests 01 (1 locked)
1 Chest 02 (locked)
1 Chest 04
The following plants will always be found: 18 Cairn Bolete plants and 36 Wisp Stalk plants
Doors and Gates:
There is one door (at D) in/out of this zone, leading to the zone Lower Arrowshaft Cavern