Tapping the Vein

I've made an important find on my travels through Karak Dron. This book contains several locations of mines that have been lost to the Dwarfs since the great cataclysm. There is one in particular that interests me. The book speaks of a vein of gromril ore, as pure as a mountain spring. I attempted to explore the mine myself but the passages are filled to the brim with all manner of beasts. I'm not going to waste my time if there's not a pure vein in there. Head into the mine, and take samples of ore from three separate veins. If you can't manage the job, tell me now so I can find a Dwarf that can!

Travel south through Thunder Mountain to Sparkstone Ridge in Death Peak. Go to the Karkarag Mines and gather ore samples there. When you have them, head back to Norri Ringson at Dragonslayer Ridge.