Tubal Cain Copper MIne In 1902, copper was discovered in the Dungeness River drainage. The ore was said to have both copper and gold. Later that year, the Tubal-Cain Copper & Manganese Mining Co. headquartered in Seattle built a trail and began to mine ore out of the area. After an avalanche in 1912, which destroyed the main sawmill, powderhouse, and barn and clubhouse, activity at the mine declined. The mine never produced a dime of profit. Most geologists believe upheaval of the Olympic Mounta