A permanent location in the Cold Lands
Available from Level 75
Set out to Stoneswick! Find the Inuit settlement, talk to the Shaman, and learn where the Guardian went!
Equipment needed for travelling: Kerosene Lamp, Tent
Storage building available from the start (Inunnguaq)
You can find copper in Caldos, Inti-Coast, Dune, Gunnar, Sol, Gold Rush, Beorn, Lormuth, Rocksmore Ravine and Iron Valley.
If you have cleared all the lands to 100% or made sure you took all the valuable resources from these lands you should have a decent amount of copper in storage. If you don't then your only options are to wait for additional copper in the game or check with your neighbors to see if they are offering it in the traders.