Visit the Salmon Resource Map
The Lower Columbia Salmon Resource Map is designed to inform habitat restoration, conservation and programmatic actions by Tribes, state agencies, counties, restoration practitioners, conservation organizations, landowners and other interested parties. Map resources build on the All-H recovery scenario in the Washington Lower Columbia Salmon Recovery and Fish & Wildlife Subbasin Plan.
Click on the map image below to start exploring.
Map Development Process
- Winter 2024
Phase 1: Initial release of the Lower Columbia Salmon Resource Map
Recovery mapping resources include information on salmon distribution, biological and habitat conditions, and land cover details at both the jurisdictional and watershed scales. The subbasin layer includes viability status and goal information for each of the 72 salmon and steelhead populations in the region.
The Ecosystem Diagnosis and Treatment (EDT) stream layer continues to function as the regional habitat strategy technical foundation. Priority habitat action data are also available for the Upper Cowlitz and Cispus subbasins.
- Summer 2025
Phase 2: Fish passage barrier correction priorities available
A regional barrier inventory and prioritization project was completed in summer 2025. Barrier locations, fish passage estimates and correction priorities are now available on the Salmon Resource Map. This information can be used to guide identification of the highest priority fish passage corrections across the lower Columbia River.
Learn more about the Lower Columbia Barrier Inventory and Decision-Support Tool.
Check out the Lower Columbia Barrier Quick Guide to learn how to access and interpret this new information.
- Spring 2026
Phase 3: Focused Investment Strategy for Habitat Actions
Habitat strategy priorities are under development and new information will continue to be added to guide strategic investments to priority areas for protecting and restoring watershed processes and habitat conditions for salmon and steelhead.
Learn more about the Focused Investment Strategy for Habitat.