RedactedNarrative: The operator and passenger were traveling across Flathead Lake after dark attempting to navigate using a smart phone GPS. The vessel was on plane. The passenger indicated that the vessel needed to make a right turn. Upon executing the turn the vessel struck a navigational pylon. 
  Both individuals were thrown from the boat and landed in the water. The boat capsized and ended up in the water upside down. Both individuals swam to the boat and crawled on top of the capsized vessel. They remained on the vessel until morning when they were rescued by a fishermen.