Profession (Miner):
This skill gives you the knowledge of digging holes in the ground, shoring up tunnel shafts, and other related subjects.
Digging holes: For this skill check, you can use either INT or STR as a modifier. Each point you surpass the DC reduces the time by 1 hour.
DC 10, excavate 5' cube of dirt in 20 hours
+2 DC for difficult soil or sandstone
+4 DC for Stone or root entangled soil
+6 DC for Granite or Kalichi (a hard clay layer such as found in the Arizona deserts)
+4 DC for improvised implements (Swords, Military Picks, etc..)
And in keeping with Sean Reynolds’s recent rant on avoiding absolutes, +5 DC for untrained use.
Characters with Stone-Cunning get a +4 to their check.
The only existing guidelines that come close are hardness and hp of an object.Arravis said:Hey, are there any books out there that have rules for digging in stone or dirt? I have some PC's in a hurry to dig a hole in a cliff wall and I'm trying to find out how much they can do in a day. Thanks guys!
Primitive Screwhead said:With this, you typical PC swinging a sword at a stone wall ...

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.