Description: These data contain 1:100,000-scale polygons defining the extent and label of each geologic unit. The label is an abbreviation that represents the age, lithology, and name of a geologic unit. This feature class is part of a geodatabase that contains statewide 1:100,000-scale geology data for Washington State.
Value: Miocene Columbia River Basalt Group, Grande Ronde Basalt Label: Miocene Columbia River Basalt Group, Grande Ronde Basalt Description: N/A Symbol: