How do I find...

[martinuzz]

...higher quality

- soil
- clay
- sand
- leeches

Is it determined by some skill / attribute, and/or is it dependant on location?

[Neruz]

Leech quality increases by 1 every time they suck a HP off you, to a maximum equal to your CON value. When their quality equals your CON value and they suck a HP off you, they become bloated.

Soil, Clay and Sand is random, or if there's some sort of pattern i've not found one. Just float around digging in the ground until you find a good spot.

[martinuzz]

Aye, thanks yet again for the quick clarification!

[DeadlyPencil]

if your on the main grid search "maplib haven and hearth" the 2nd link has 4 maps, the "2nd world map" shows the main grid and some resourse spots.

[sabinati]

Main grid map: http://xrl.in/3s4c