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#1 City
Urban Watercourses
- Organization: City of Seattle
- Dataset Last Updated: October 26, 2026
This layer displays the urban watercourses showing open stream channels and flow within culverts, drainage laterals, and drainage mainlines. The Washington State Department of Natural Resources...
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Search relevance: 176.07 | Views last month: 1 | Catalog Last Checked: October 28, 2026 at 07:11 PM
#2 State
Oregon Channel Migration
- Organization: State of Oregon
- Dataset Last Updated: July 07, 2023
Channel migration is the natural process by which streams move laterally over time. It is typically a gradual phenomenon that works over many years to effect significant migration. In some cases,...
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Search relevance: 30.38 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:40 PM

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