Tubal Cain Mine is an abandoned copper mine in the Buckhorn Wilderness, east of Olympic National Park in the US state of Washington. The main adit penetrates 450 meters into Mount Worthington. The mine is named after Tubal-Cain, a character mentioned in the Bible. The Book of Genesis 4:22 says that Tubal-cain was a "forger of all instruments of bronze and iron," a metalsmith.