How to get out Idaho Falls
Grand Teton National Park is about 100 miles east of Idaho Falls. Heading east out of Idaho Falls on US-26 will go right into the south entrance. This entrance is open year round.
Yellowstone National Park is about 100 miles north east of Idaho Falls. US-20 goes all the way to the west entrance. Yellowstone can also be entered through the south entrance from the Grand Tetons. Both entrances are closed from November to April.
Targhee National Forest is about 60 miles to the north east on US-20. The Mesa Falls Scenic Byway goes through the forest and leads to the Upper and Lower lookouts of Mesa Falls.
Routes through Idaho Falls
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The Most Frequently Asked Travel Questions about Idaho Falls