According to Wikipedia, its length is 255 miles but the larger dimension is its width, which is 630 miles.
Alaska is the widest state in the United States, with a width of over 2,261 miles. Texas is the second widest state, spanning approximately 801 miles from east to west. California ranks third in width, measuring around 770 miles from its eastern border to the coast. Montana is the fourth widest state, with a width of about 630 miles. Oregon is the fifth widest state, with a width of around 400 miles.
Widest point North to South: 255 miles. Interstate 15 (the only North-South freeway running the entirety of Montana) runs for 416 miles in the state. East to West: About 630 miles. The shortest route following a highway (US Route 2, from the Idaho border west of Troy to the North Dakota border near Williston) is around 670 miles.
Between the northwest corner of Montana and the southeast corner of North Dakota, their combined width is 933 miles and about 1848 feet. Measured between points on the same parallel of latitude their width is about 878 miles, while along the Canadian border their width is 855 miles.
From Missoula to Kalispell Montana it is 120 miles
157 miles
48 Miles.
202 Miles.
The state of Montana is 147,164 square miles.
Montana, USA - 147,165 square miles.
285 miles
Montana is 630 miles across, 2400 miles from Orlando.