Ancient Bark Valheim 1.0.20
Ancient Bark is a material found in the Swamp biome in Valheim. It is used to craft Root Harnesk and build Bonfire.
“An ancient and sturdy material.”
Ancient Bark is a material described in game as "An ancient and sturdy material." It first becomes available in the Black Forest. Each piece weighs 2, and you can carry a stack of up to 50. It can be teleported.
You use Ancient Bark to craft Root Harnesk, Root Leggings, Root Mask, Battleaxe, Crystal Battleaxe, Draugr Fang, Frostner, Iron Buckler, Iron Sledge and Ancient Bark Spear. It is also used to build the Bonfire, Butcher's Table and Longship.
Used to craft
Ancient Bark Spear, 
Battleaxe, 
Crystal Battleaxe, 
Draugr Fang, 
Fang Spear, 
Frostner, 
Iron Brooch, 
Iron Buckler, 
Iron Sledge, 
Root Harnesk, 
Root Leggings, 
Root Mask.
Used to build
Bonfire, Butcher's Table, Longship.
Other material items
Acorns, 
Amber, 
Amber Pearl, 
Ancient Coin, 
Ancient Metal, 
Ashlands Gourmet Bowl, 
Ashwood, 
Asksvin Bladder, 
Asksvin Hide, 
Asksvin Neck, 
Asksvin Pelvis, 
Asksvin Ribcage.