An overview of landslide hazards in Idaho

Landslides are a significant hazard in Idaho because they are widespread, destructive, disruptive, and their exact timing and location is unpredictable. Despite the drastic precipitation gradient across Idaho, landslides occur throughout the state. Idaho’s underlying geology and steep topography create favorable conditions for landsliding. Furthermore, the location of many of Idaho’s transportation corridors within narrow, steep-sided canyons compounds the threat by exposing critical infrastructure to these landslide hazards. I present examples of several landslides and discuss the Idaho Geological Survey’s efforts to document and study landslide hazards in the state.

Lifton Z (2022) An overview of landslide hazards in Idaho, 14 April 2022.