These are 11 National Natural Landmarks in Idaho.
| Name | Image | Date | Location | County | Ownership | Description | |
|---|---|---|---|---|---|---|---|
| 1 | Atomic City43.4014°N -113.0239°W | federal (Bureau of Land Management) | A 2,500 ft Rhyolitic dome that rises over the Eastern Snake River Plain. It illustrates the scope and dimensions of Quaternary volcanism in the western United States. | ||||
| 2 | Island Park44.5003°N -111.2553°W | federal (Caribou-Targhee National Forest) | The only first-magnitude spring in the country that issues forth from rhyolitic lava flows. | ||||
| 3 | Malta42.076°N -113.7017°W | federal (City of Rocks National Reserve) | Monolithic landforms created by exfoliation processes on exposed massive granite plutons. | ||||
| 4 | Mountain Home43.1907°N -115.8597°W | federal (Morley Nelson Snake River Birds of Prey National Conservation Area) | Two adjacent and symmetrical pit craters that are among the few examples of this type of crater in the continental United States. | ||||
| 5 | Craters of the Moon National Monument and Preserve43.4617°N -113.5628°W | federal (Craters of the Moon National Monument and Preserve) | A tensional fracture in the Earth's crust. | ||||
| 6 | Hagerman Fossil Beds National Monument42.7906°N -114.9448°W | federal (Hagerman Fossil Beds National Monument) | Contains the world's richest deposits of Upper Pliocene age terrestrial fossils. | ||||
| 7 | Blackfoot43.5°N -112.45°W | federal (Bureau of Land Management) | Fully exposed pahoehoe lava flow. | ||||
| 8 | Shoshone47.0911°N -116.127°W | federal (St. Joe National Forest) | An outstanding example of pristine western red cedar forest. | ||||
| 9 | Menan43.6°N -111.5°W | federal (Bureau of Land Management) | Contains outstanding examples of glass tuff cones, which are found in only a few places in the world. | ||||
| 10 | Hagerman42.8578°N -114.8764°W | private | Least developed of the large springs discharging into the Snake River from the Snake River plain aquifer system. | ||||
| 11 | Council45.1917°N -116.6713°W | federal (Payette National Forest) | Horizontally layered lavas that represent successive flows on the Columbia River Basalt Plateau. | ||||