* [[Paving]]: At water level (+/- 0)
* Passable by [[large cart]]s: Three seven below water level (-7)
* [[Mining#Opening a mine|Tunneling]]: North-western corner at most 13 12 dirts below water level (-1312)
* [[Digging]]: Up to seven dirts below water level (-7)
* [[Mining#Surface mining|Surface mining]]: Up to 14 dirts below water level (-14)