From Salish Sea Wiki

Salmonscape is an on-line mapping tool that serves up-to-date WDFW data on fish distribution, including level of documentation, as well as fish passage barrier data. It is useful for evaluating the currently acknowledge level of fish use and access by the state of Washington. Tribal Governments and Wild Fish Conservancy have completed water typing, using traditional field surveys and eDNA and may have evidence that is different then that currently served by WDFW.