What do I need to view GIS data?
Snohomish County GIS data requires GIS software to be viewed. To download a free viewer for Windows please click the link.ArcGIS Explorer Free Download

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1. Why can't I download data from the FTP site?
2. What formats are the County's GIS data available in?
3. What do I need to view GIS data?
4. What is a .ZIP file?