When Ed and his wife were in Saudi Arabia when this culture was given to them by a former medical school classmate who was there at the same time. He got it from his physician father, who in turn got it from a Yukon prospector. The wonderful flavour it produced inspired them to search Europe and the Middle East for other sourdoughs while in Saudi Arabia. It was well received in comparison baking tests they conducted there with the other cultures they were acquiring. Each was different, and the unique properties of the Yukon earned it a permanent place in their collection.