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#1 State
WDFW - Tacoma Power Cowlitz SGS Sampling Data
- Organization: State of Washington
- Dataset Last Updated: May 28, 2026
An output of steelhead encountered during Cowlitz-basin spawning ground surveys. Data originates in the WDFW database Traps, Weirs, and Surveys (TWS) database.
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Search relevance: 108.66 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:43 PM
#2 State
WDFW - Tacoma Power Cowlitz SGS Counts
- Organization: State of Washington
- Dataset Last Updated: November 03, 2026
An output of steelhead spawning ground surveys conducted in the Cowlitz Basin. Data originates in the WDFW database Traps, Weirs, and Surveys (TWS) database.
- JSON
- XML
- CSV
Search relevance: 104.31 | Views last month: 1 | Catalog Last Checked: November 03, 2026 at 11:28 PM

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