Argenta Cave: A Real Ice Cave December 20, 2018February 1, 2018 This content is for NRMG members only.Register Here Already a member? Log in here Related posts: Searching for Caves in the Northern Rocky Mountains Lost Creek Siphon: The Carl Froslie Experience Bear Canyon: Beginner Vertical Practice Dumb Luck (The Great Exit): Chilling in the Grim Crawl Argenta Cave Little Bitterroot Canyon Ice Cave: Warm day/cool cave