|This digital dataset, compiled from previously published and unpublished data sources, contains a personal geodatabase and raster data of features related to the repeated inundation of the Willamette Valley and Portland basin by Missoula Flood waters in L
|Minervini, J. M.; O'Connor, J. E.; Wells, Ray E.; Wheeler, Karen L.; and Thoms, Evan E.
|U.S. Geological Survey Open-File Report 03-408
Polygon delineating the planimetric area of a landslide found in coverages whose names begin with ls, ols, or yls
|Some regions within landslides were apparently unaffected by the landslide (that is, they represent areas bypassed by the landslide but are within its outer boundaries) This attribute is used to distinguish those areas from the landslide itself.
Polygon in the mm coverages, used to indicate the method by which landslides were identified, found in coverages whose names begin with mm.