20210303 08583700 1.0 TRUE Invasives Zones Zones used to organize activities for controlling invasive species in Portland. The zones are organized by primary zone name and sub-zone number. -- Additional Information: Category: Environmental Purpose: For organizing field activities for controlling invasive species. Update Frequency: As Needed -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54189 Bureau of Environmental Services