WDFW - Tacoma Power Cowlitz SGS Counts

An output of steelhead spawning ground surveys conducted in the Cowlitz Basin. Data originates in the WDFW database Traps, Weirs, and Surveys (TWS) database.

Data and Resources

Additional Info

Field Value
Source https://data.wa.gov/resource/n2u5-njfc
Author Washington Department of Fish and Wildlife Data
Last Updated June 17, 2026, 05:49 (UTC)
Created May 29, 2026, 02:14 (UTC)
Category Natural Resources & Environment
Period of Time 2005-Present
Posting Frequency Nightly
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harvest_source_id c4128faf-39ff-4aa3-918e-8a395702cab3
harvest_source_title washington-state