Abandoned Mineshaft

Abandoned Mineshaft
Type	Generated Structure
Location	Underground in All Biomes
First Appearance	Update 0.9.0

Abandoned Mineshafts are naturally Generated Structures that were added in Update 0.9.0.

Generation

The Structure can be found in any Biome, but is placed underground which makes it a little harder to spot. The Mesa Mineshafts, found only in the Mesa Biome, can spawn at the surface, making the entrance more visible.

Structure

Interior

Abandoned Mineshafts are long winding maze-like structures. They usually begin with a large Dirt room, with an arched roof, and continue into a long tunnel-type maze, with Fences and Oak Planks approximately every 4 Blocks. 

They will sometimes have Torches and Rails, along with large numbers of Cobwebs. Most Abandoned Mineshafts also contain Cave Spider Spawners. The Spawners are protected by many Cobwebs, making it harder to break.

As tunnels intersect there is also Oak Plank pillars supporting the upper tunnel, and Oak Planks in the floor and/or roof between the different tunnels.

Loot

Loot can be found in Minecarts with Chests that spawn in Abandoned Mineshafts. The Loot consists of items from 3 different groups each with their own distribution:

Name	Weight	Chance	Count
Group 1 count: 1
File:Golden apple .png Golden Apple	20/71	28.2%	1
Enchanted Apple	20/71	28.2%	1
Name Tag	30/71	42.3%	1
Enchanted Book	10/71	14.1%	1
Iron Pickaxe	5/71	7.0%	1
Nothing	5/71	7.0%
Group 2 count: 2-4
Iron Ingot	10/83	12.0%	1-5
Gold Ingot	5/83	6.0%	1-3
Redstone	5/83	6.0%	4-9
Lapis Lazuli	5/83	6.0%	4-9
Diamond	3/83	3.6%	1-2
Coal	10/83	12.0%	3-8
Bread	15/83	18.1%	1-3
File:Melonseeds.png Melon Seeds	10/83	12.0%	2-4
File:Pumpkinseeds.png Pumpkin Seeds	10/83	12.0%	2-4
Beetroot Seeds	10/83	12.0%	2-4
Group 3 count: 3
Rails	20/50	40.0%	4-8
File:Powered rail.png Powered Rail	5/50	10.0%	1-4
File:DetectorRail.gif Detector Rail	5/50	10.0%	1-4
File:ActivatorRail.gif Activator Rail	5/50	10.0%	1-4
Torch	15/50	30.0%	1-16

In addition to the loot found in Chests, Mineshafts expose the Ores of the surrounding Biome, making it a good place to mine.

Trivia

• Before Update 0.11.0, Abandoned Mineshafts contained Spider Spawners, due to Cave Spiders not being implemented.
• Abandoned Mineshafts can occasionally be intersected by a Stronghold or a Dungeon.
• Some areas of the Mineshaft are lit by torches, but not enough to stop Mobs from spawning.
• Sometimes, part of the Mineshaft can be missing or on Fire due to a natural Lava stream.
• Abandoned Mineshafts are not only very long, but they are deep, since they can go from sea level to Bedrock.
• Abandoned Mineshafts are more likely to spawn the deeper underground the Player goes.
• As of Update 0.14.0, Abandoned Mineshafts now have a chance to have a random Minecart with a Chest containing loot.