This dataset documents fish distribution and activity for ALL FISH SPECIES available from data submitted to the regional StreamNet project by partner agencies. This dataset was compiled from separate spatial datasets contributed by StreamNet partners as of January 31, 2019. Distribution is based upon survey data and, in some cases, the best professional judgement of local fish biologists, in the Pacific Northwest Region (Oregon, Washington, Idaho and Montana). These data were collected by biologists at the state fish & wildlife agencies of Washington (WDFW), Oregon (ODFW), Idaho (IDFG) and Montana (MFWP). Data were then compiled into spatial datasets by StreamNet partners. These seperate source layers (identified in the References section of this metadata record) were submitted to the GIS staff at Pacific States Marine Fisheries Commision (PSMFC) where they were combined in to a single consistent regional dataset. These and other related data are available for download from the StreamNet website and are also publicly avialable on ArcGIS Online and via public web mapping applications.