- Counties: Island, Jefferson, King, Kitsap, Mason, Pierce, Skagit, Snohomish, Thurston
- National Estuary Programs: Puget Sound
- Other Watersheds Upstream: Strait of Georgia, Lower Skagit, Stillaguamish, Snohomish, Lake Washington, Duwamish, Puyallup, Nisqually, Deschutes, Hood Canal
- Other Watersheds Downstream: Nooksack, Lower Skagit, Snohomish, Duwamish, Hood Canal, Dungeness-Elwha
A 2014 report by the North Cascadia Adaptation Partnership identifies climate change issues relevant to resource management in the North Cascades, and recommends solutions that will facilitate the transition of the diverse ecosystems of this region into a warmer climate.
How does one of the West's busiest airports deal with extreme stormwater, and what does that mean for water quality standards in the rest of the state?
A December 2014 paper in the journal Aquatic Ecosystem Health & Management describes a project to identify transboundary ecosystem indicators for the Salish Sea.
The decaying seawall along Seattle’s waterfront is providing scientists with an opportunity to improve long-lost habitat for migrating salmon. It could also show the way for habitat enhancements to crumbling infrastructure worldwide. One University of Washington researcher describes the project.
There are many ways of defining the boundaries of the Puget Sound watershed. Hydrologic unit codes (HUCs) are nationally standardized divisions that are often used by conservation agencies and national organizations.