Hand crafted. There's a monster lurking in Flathead Lake! Fact or fiction? Is the legend of the monster in Flathead Lake based on an innocent mistake of some local fly-fisherman or the haunting sighting of a legitimate descendant of a prehistoric creature? No one knows for sure. All we know is something's going on in the deep, cold waters of the lake. First sighted by a steamship captain in 1889, the legend of the monster in Flathead Lake continues to grow. We offer this delicious handcrafted gourmet soda as a tribute to the monster of the lake and its legend. Montana's legendary soda.