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Maps

The Landslide Hazards Program produces maps indicating both historical landslide locations and potential future landslide risks. These maps are typically paired with geospatial data products, which help assess hazard levels, and can be useful for risk-reduction and land-use planning.  

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Photointerpretive map of landslides and surficial deposits of northernmost Napa County, California Photointerpretive map of landslides and surficial deposits of northernmost Napa County, California

This map shows various types of landslide deposits, scarps, and related topographic features, in addition to other types of surficial deposits, in northernmost Napa County, California. It was prepared by viewing overlapping vertical aerial photographs with a stereoscope. This method allows the geologist to see a three-dimensional model of the terrain to be analyzed and thereby permits...

Preliminary map of landslide deposits, Denver 1° by 2° Quadrangle, Colorado Preliminary map of landslide deposits, Denver 1° by 2° Quadrangle, Colorado

Areas inferred to be underlain by landslide deposits resulting from landsliding, avalanching, block gliding, debris sliding or flowing, earthflows, mudflows, rocksliding, rockfalls, rotational slides, slab or flake sliding, slumping, talus accumulation, and translational sliding. Rock glacier deposits, colluvium, and solifluction deposits are included in some areas. Some till is mapped...
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