Water is the lifeblood of any bioregion. The Cascadia bioregion defines the Pacific Northwest of North America by the watersheds of the Columbia, Fraser, and Snake River valleys. These rivers give life to a region, and tell the story of this place. Depicted here for the first time, is the complete series of rivers that make up the hydrology of the Cascadia bioregion, not divided into the United States or Canada, but rather, one complete systems of interconnected streams, rivers and waterways.

Our Cascadia Hydrological Map shows in fascinating detail how our rivers and streams flow and interconnect, merge and diverge, carrying life to the land. Cascadia has long inspired generations of cartographers, geographers, planners and visionaries. The flow of water also has an inherent aesthetic elegance that our map captures beautifully.

Watersheds, like Cascadia, transcend arbitrary borders, and are critical in understanding where our water comes from, and where it goes, as well as engaging with all of the communities affected by that discussion. Creating these holistic cultural, economic, ecological and democratic systems are why ideas like Cascadia are so important.

Posters & Prints

For anyone interested - we also have high resolution Digital Prints that print out 24 x 36 inch posters at 300 DPI available for $5, or original artwork printed posters in either 18x24 or 24x32 in poster matte printing, or as glicee’ fine art prints. 10% of all earnings go to support the Alaska Whale Foundation.