State or territory
National Park Service units in Idaho
10 units, including those that Idaho shares with other states. See them on the map.
- California National Historic Trail
- City Of Rocks National Reserve
- Craters Of The Moon National Monument & Preserve
- Hagerman Fossil Beds National Monument
- Ice Age Floods National Geologic Trail
- Lewis & Clark National Historic Trail
- Minidoka National Historic Site
- Nez Perce National Historical Park
- Oregon National Historic Trail
- Yellowstone National Park