The term HIGH MOUNTAIN can be broken down into three crossword solutions: ALP (3 letters), MUNRO (5 letters), and RANGERS (7 letters). An ALP is a high mountain or hill, usually found in the Alps. A MUNRO is a Scottish mountain with a height of over 3, 000 feet. The term was coined by Sir Hugh Munro in 1891. Finally, RANGERS are people who work in national parks and forests, often patrolling and protecting the land.