U.S. News Insider Tip: One of locals’ favorite times to bike in GTNP is the month of April, when the Teton Park Road is free from snow, but not yet open to cars (it opens to cars May 1).

The Colter Bay Visitor Center is on the eastern shore of Jackson Lake in the northern half of the park. Rangers can answer your questions about GTNP and issue permits for boats and backcountry ...