You can dredge all kinds of material, for instance [[clay]]. However, clay, [[peat]] and [[tar]] tiles will only lower if the corner you are digging at is close to some terraformable tile type. The material dug is generally determined by the tile you are closest to its northwest corner.
== Improving ==
* Improvement uses [[Blacksmithing]] skill but [[ccarpentry]] tools: [[mallet]], [[file]], [[carving knive]], and [[log]].
== Notes ==