Mesa Mineshaft

Mesa Mineshafts were generated structures added in Update 0.10.0. It offers many of the same features as a normal mineshaft.

Structure
It is composed of spruce planks and fences as beams. They extend inside mountains from mesa biomes. They are shorter than normal mineshafts but can be just as complex.

Differences

 * Made of Spruce rather than oak
 * Generally shorter
 * Main ore is gold
 * Spawns on surfaces

Similarities

 * Rails, similar blocks and rooms.
 * Random torches
 * Currently no chests
 * Composed of multiple rooms.