U.S. Route 287 in Montana

U.S. Highway 287
U.S. Highway 287
	US 287 highlighted in red
Route information
	Maintained by MDT
Length	281.183 mi (452.520 km)
Existed	1965–present
Tourist; routes	Lewis and Clark Trail
Major junctions
South end	Yellowstone National Park at West Yellowstone
	US 20 / US 191 in West Yellowstone; I-90 near Three Forks; US 12 from Townsend to Helena; I-15 from Helena to Wolf Creek; MT 200 near Milford Colony;
North end	US 89 in Choteau
Location
Country	United States
State	Montana
Counties	Gallatin, Madison, Jefferson, Broadwater, Lewis and Clark
Highway system
	United States Numbered Highway System; List; Special; Divided; Montana Highway System; Interstate; US; State; Secondary;

U.S. Route 287 (US 287) is a north-south United States Numbered Highway in the state of Montana. It extends approximately 281.2 miles (452.5 km) from Yellowstone National Park north to U.S. Route 89 in Choteau, 100 miles (160 km) south of the Canadian border.

^ Road Inventory and Mapping Section (2019). Montana Road Log (PDF). Helena: Montana Department of Transportation. pp. 6–7, 72–74, 90, 179–181, 242. Archived from the original (PDF) on October 20, 2020. Retrieved December 29, 2020.