Trails in Idaho
There are 2 National Park Service units that include territory in Idaho. The directory below links to every park guide we maintain for the state. For multi-state parks, you'll see the same entry on each state's page — the trail catalog itself is identical.
Trip planning from Idaho typically means balancing drive time against trail effort. A weekend out of state can be more efficient than a one-day push to a closer unit if it means daylight on the actual trail rather than behind the wheel. Use the per-park guides to compare difficulty and seasonality before locking in dates.
Craters of the Moon National Monument
Vast lava landscape of cinder cones, spatter cones, and lava tubes on the Snake River Plain.
Yellowstone National Park
World's first national park, sitting atop a supervolcano. Geysers, mudpots, the Grand Canyon of the Yellowstone, and one of the largest intact temperate ecosys…