Description: These data contain polygons defining the extent and characteristics of mapped landslides in the State of Washington. This dataset is a compilation of pre-existing landslide databases from several sources, including the Washington Geological Survey and Forest Practices, and other federal and private compilers. As such, the mapped landslides were originally created to meet a variety of purposes. It also includes more recent landslides mapped by the Washington Geological Survey. This compilation does not include all landslides that may exist in Washington State. Areas that overlap studies performed using the new landslide inventory mapping protocol have been split into a separate feature class in this geodatabase: superseded_landslide_compilation.