The Mines to the South work through the mountains, but further down the coast there are unexplored deposits.
Gunthar thinks there should be better materials and if we can stake a claim, he can start organizing a work force to improve the materials available to the town. And he gets to sell finer wares, of course.
Bringing news of a deposit and enough to create a properly charged anvil would allow the players to find themselves in the presence of 50 trea in gratitude and whatever favor grunts from Gunthar's beard.
Accomplishing this task will allow Gunthar to work with Pierre on enchanting his wares.
Coccyx