Deer Lodge Valley is a meadowland surrounded on the east and the west by mountain ranges. More museums and historical collections can be found here than in any other town in the Northwest. Deer Lodge's 1,500-acre Grant-Kohrs Ranch National Historic Site illustrates the development of the northern plains cattle industry from the 1850s to recent times. This was the headquarters of one of the largest and best known 19th-century range ranches in the country.