What are the main land regions in Idaho?

1) The Rocky Mountains: this region includes the Sawtooth Range, the Lost River Range, and the Pioneer Mountains.

2) The Snake River Plain: this region is a large, flat valley that is drained by the Snake River.

3) The Clearwater Mountains: this region is located in the northern part of the state and includes the Bitterroot Range and the Salmon River Mountains.

4) The Owyhee Uplands: this region is located in the southwestern part of the state and is characterized by rolling hills and canyons.