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Landslide Hazard Maps

Below are maps that show where landslides are likely to occur on Prince of Wales Island. They include:

  • The locations of previous landslides, mapped by the U.S. Forest Service (black, striped polygons)
  • Model outputs showing where landslides are likely to occur in the future (red is where landslides start, yellow is where the landslide debris goes)
  • Roadways and trails that may be at risk of landslides

The modeled landslides were developed using topography and estimates of soil characteristics, but soil is complex and varies by location, even in locations close together. Landslides may occur in places not identified as “at risk” by these maps.

Download the maps below to view them and print them out.

Klawock / Hollis Highway

Klawock / Hollis Highway

Download Klawock / Hollis Highway

Interactive Landslide Hazard Map

You can also use the interactive map below to explore the same information shown above.

Download a ZIP file of all layers (147MB) in GIS formats (GeoTIFF and shapefiles).

Modeled Landslide Prone Areas are do not integrate current or forecasted rainfall.