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→Surface excavation: link to Sculpting wands, Mining > Tunnel -> Tunnel
=== Surface excavation ===
The first step in all mines is to make a mine entrance on the surface. This can be done on any [[cliff]] or [[rock]] tile. Equip a mining pick, and select the mining -> tunneling Tunnel option. After 51 tunneling actions, the message "You will soon create an entrance" will appear. A few actions later an entrance will be created. The exact value is random, averaging around 5 mining actions after the message appears.
Tunneling on a shallow slope is dangerous since you are basically mining straight down and may dig yourself into a steep slope or a pit. A slope of 10+ is probably safe (estimate). The good news is that a poor tunnel slopes can be fixed. The bad news is that it is a lot of work!
[[Sculpting rodswand|Sculpting wands]], if you have access to one, are the fastest way to shape rock. Someone else will need to enter data on them, as I have never owned one.
You can now change the slope of surface rock with a mining pick. It is time consuming, but possible. Here's a step-by-step on how to do this.
1) You must clear a square of four tiles all the way down to rock in order to lower the rock at the point where those four tiles intersect. To clear all the dirt off a single rock tile, you must dig down to rock on all four corners. You will know that you have hit rock by watching event messages for messages that indicate you are hitting rock. You will also cease collecting dirt in inventory when you start hitting rock. Example:
If you want to lower rock at point E, you will have to dig down to rock at all points A through I. Points A/B/E/D will clear the top left square, B/C/F/E will clear the top right, etc, etc.
2) Activate your mining pick and stand at the intersection of the four tiles (point E), click the ground, and select the mining action. Be sure that you do not select tunneling. Tunneling will eventually create a mine entrance, which we do not want (at least not yet).
3) Roughly once per every 10 mining actions, according to recent notes, you will drop the rock level at the point where you are mining by 1 dirt. This does not appear to be a cumulative chance. Sometimes you will drop the rock level very quickly for a short spurt, other times you might mine 25 times and not drop the level. In other words, many failures in a row does not make future success more likely.
Surface excavation will produce [[rock shards]] on some actions. The probability seems to be around 25%.
=== Mine doors ===
