Sweet Grass County

Sweet Grass County is an administrative division in south-central Montana that covers forests and mountain areas. The region encompasses roughly 1,862 square miles and includes portions of several national forests within its territory.

The division was created in 1895 through a redistribution of lands from Park, Meagher, and Yellowstone counties. Big Timber was established as the county seat and has remained its administrative center since then.

Residents maintain connections to German, Norwegian, and Irish ancestry, which shows up in local celebrations and community gatherings throughout the year. These heritage ties shape how people gather and celebrate together.

Big Timber serves as the administrative center and reference point for visitors exploring the area. Interstate 90 and U.S. Highway 191 run through the region, providing convenient access routes.

The region contains portions of three national forests—Custer, Gallatin, and Lewis and Clark—which provide diverse recreation and natural resources. These forest areas play an important role in the region's daily life and economy.

GPS coordinates: 45.87294,-109.95039

Latest update: December 8, 2025 13:42