Treebark

Tree Bark is used in Leather Working to produce Leather from dried hides by creating Tanning Fluid which is used by Tanning Tubs.
Birchbark (a bark taken from Birch Trees) is used to make Kuksa, Barkboats, and a few other Birchbark-specific items. Birchbark can be use as substitute for normal bark.
==How to Acquire==
You can acquire Tree Bark by selecting 'Take bark' on a tree. Taking bark from a Birch will give Birchbark instead.