Navn;Beskrivelse;Kodeverdi;Navn engelsk;Beskrivelse engelsk;Kodeverdi engelsk
1 very good;sludge;1 very good;;;
2 good;sand, gravel;2 good;;;
3 difficult;gravel, cobble, boulder;3 difficult;;;
4 bad;solid rock more than 30m deep;4 bad;;;
5 impossible;solid rock less than 30m deep;5 impossible;;;