Hells Gate sits on river bottom exposed after the great ice age floods about 15,000 years ago. At the south end of the park are basaltic columns from the Pomona flows 14 million years ago. Hells Gate State Park was also the site of a Nez Perce village. Little is left of the village now, but depressions south of the campground are the remnants of pit houses used for years by the Nez Perce as they fished for lamprey near Asotin Creek.

Things To Know

  • The entrance fee to all of Idaho’s State Parks is $5.00 per car, with additional fees for camping.
  • Reservations for stays (campsites, cabins, etc.) within Idaho's State Parks can be made toll-free by phone at: 1-888-922-6743 or online.
  • Pets are welcome in most Idaho State Parks, but some parks prohibit them in some cabins and yurts and they are prohibited from beaches.