a state of the western US: consists of the Great Plains in the east and the Rocky Mountains in the west. Capital: Helena. Pop: 917 621 (2003 est). Area: 377 070 sq km (145 587 sq miles)Abbreviation: Mont, (with zip code)MT
U.S. state, from Latinized form of Spanish montaña "mountain," from Latin mont-, stem of mons (see mountain). Proposed 1864 by U.S. Rep. James H. Ashley of Ohio when it was created as a territory from Nebraska Territory, in reference to the Rocky Mountains, which however traverse only one end of it. Admitted as a state 1889. Related: Montanan.