Sweet Grass County, Montana

Sweet Grass County is tucked away in south-central Montana, about halfway between Billings and Bozeman. It gets its name from the fragrant grass that once covered the prairies.

Big Timber is the county seat and sits along the Yellowstone River. Locals take pride in their ranching heritage. You’ll find endless skies and rolling hills throughout the county.

The Crazy Mountains loom to the west, providing a beautiful backdrop. Fishing and hunting are popular pastimes here. Despite its small population, the county has a close-knit community that looks out for one another.

CategoryDetails
County NameSweet Grass County
County SeatBig Timber
EtymologyNamed after the abundance of sweet grass found in the area
Cities, Towns, and CommunitiesBig Timber, Greycliff, Melville
Interstates and HighwaysI-90, US 191
FIPS Code30-097
Total Area (Land and Water)1,862 square miles (Land: 1,855 sq mi, Water: 7 sq mi)
Adjacent Counties (and Direction)Wheatland County (North), Golden Valley County (Northeast), Stillwater County (East), Park County (West), Meagher County (Northwest)
Time ZoneMountain Time Zone (MT)
StateMontana
Coordinates45.8060° N, 109.9518° W
Major LandmarksCrazy Mountains, Natural Bridge Falls, Sweet Grass Creek
PopulationApproximately 3,800
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