The journey from Billings to Grand Junction covers approximately 950 kilometers through the heart of the Rocky Mountains. You will primarily utilize I-90 East to I-25 South, transitioning through Wyoming into Colorado. Expect significant elevation changes as you traverse the Bighorn Mountains and the high plains. This route is best navigated during daylight hours to appreciate the scenic vistas of the Wind River Range. Plan for a full day of driving, accounting for mountain weather variability.
Total Distance: 950 km driving distance; 680 km straight-line air distance.
Check the Wyoming Department of Transportation website for wind warnings on I-25.
June through September to avoid heavy snow closures on mountain passes.