If you're already making the trip out to Yellowstone, do yourself a favor and don't stop there Grand Teton is basically right next door, and honestly, pairing the two together might be one of the best decisions you make for this trip. We did both back to back, and it completely changed how we saw the whole region. Good to Know (Quick Reference) Distance between parks: About 10 miles from Yellowstone's South Entrance to Grand Teton's border roughly a 1-hour scenic drive throu