Minecraft wiki entry for Mineshaft, associated text: A mineshaft intersecting with a ravine.
A stronghold and a mineshaft intersection.
A mineshaft's chest cart generated in a dungeon chest.
A small badlands mineshaft that tried to generate on an island.
A badlands mineshaft spawned into an iceberg.
A standalone mineshaft crossing in spectator mode.
A mineshaft in a ravine.
A cave spider spawner area in a stronghold.
Mineshaft which generated in close proximity to stronghold.
A mineshaft that only generated the central room, without any of the tunnels.
Mineshaft along with Stronghold and Jungle pyramid generated in one ravine.
Minecart with Chest generated on top of End Portal Frame, because there is Mineshaft behind the wall.
A mineshaft generated in floating buffet.
A mineshaft, dungeon, and stronghold are in one area.
A mineshaft that generated with two store rooms in stronghold.
Five dungeons and two cave spider spawners close together in a mineshaft, cleared to show all 7 spawners.
A floating rail in a mineshaft.
A dungeon that intersecting with a mineshaft at a bedrock level.
A dungeon that connected to a dead end of a mineshaft.
Tree which generated in ravine, next to the lava and mineshaft. Check the image for seed and coordinates.
Huge crater exposing mineshaft. Check the image for seed and coordinates.
Amethyst geode and mineshaft.
Amethyst geode with mineshaft and 2 cave spider spawners. Check the image for more details, including seed and coordinates.
Ruined portal generated along with mineshaft.
2 cave spider spawners next to each other.
Mineshaft and skeleton spawner generated at the very bottom of the world.