• A bull elk bugles in Yellowstone National Park


    National Park ID,MT,WY

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  • Craig Pass Closed for the Season; Mammoth to Norris, Expect 30-minute Delays

    The road linking West Thumb and Old Faithful is closed for the season—traffic should detour through West Thumb, Lake, and Canyon. More »

Post Offices

There are Post Offices at the following locations:

  • Mammoth Hot Springs - Open year-around from 8:30 a.m. to 5:00 p.m. weekdays, excluding holidays. Closed Saturday and Sunday.
  • Old Faithful - Open from early-May to late-October
  • Grant Village - Open from mid-May to mid-September
  • Lake Village - Open from mid-May to mid-October
  • Canyon Village - Open from late-May to mid-September

Did You Know?

Summer Crowd at Old Faithful.

At peak summer levels, 3,500 employees work for Yellowstone National Park concessioners and about 800 work for the National Park Service.