Crossword clues for the word: LOSTHORIZON The word LOSTHORIZON has appeared as an answer to at least 3 crossword clues on different crossword puzzles. Crossword clues for LOSTHORIZON Showing 1 to 3 of 3 results Clue(s) "James Hilton novel that's the source of the term ""Shangri-La""" Misadventures of a Plymouth? Misplaced old Plymouth?