Travel to Yellowstone National Park

(mid-October to late May).

East - Accessed from Cody (53 mi, 85 km) via US Route 14/16/20. This entrance is closed in winter (early November to early May).

South - Accessed from Grand Teton National Park via US Route 89/191/287. This entrance is closed in winter (early November to mid-May).

West - Accessed from West Yellowstone via US Route 20/191/287 (60 mi, 97 km from Ashton (Idaho). This entrance is closed in winter (early November to late April).