- How Puget Sound and Salish Sea boundaries are determined
- Puget Sound Recovery Atlas
- The Salmon and Steelhead Habitat Inventory and Assessment Project (SSHIAP)
- Historical GIS data for Puget Sound: Puget Sound River History Project
- Floristic Atlas of the San Juan Islands, Washington
- NetMap: Community Watershed Database and Analysis Tools
- NVS: NW Assoc of Networked Ocean Observing Systems (NANOOS)
- Pacific Northwest Environmental Response Management Application® (ERMA)
- PHS on the Web: Priority Habitats and Species (WDFW)
- Puget Sound Nearshore Ecosystem Restoration Project
- Salish Sea Seafloor & Habitat Maps (SeaDoc Society)
- Washington State Coastal Atlas
- Washington State Geospatial Data Archive (WAGDA)