Tongue River Cave – Wyoming: Carbide Lamps Only April 14, 2026April 29, 2019 This content is for NRMG members only.Register Here Already a member? Log in here Related posts: Big Horn Canyon: Gravity Cracks That Turn Into Caves Searching for Caves in the Northern Rocky Mountains Lost Creek Siphon: The Carl Froslie Experience Caving With Carl – Garrity Cave Hella Cave: Beginning To End Eireisenwelt – Werfen, Austria: A Fantastic Excursion Substitute