Cascadia
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Cascadian California
Flag of California
Largest City Santa Rosa
Population approx 800,000
Area approx 50,000 km²
Highest Point Mount Shasta   4,322 m

The Cascadian portion of California includes, roughly, the six current counties of Sonoma County, Mendocino County, Humboldt County, Trinity County, Del Norte County, and Siskiyou County.



      • Not all Cascadians believe that Sonoma County belongs to the Cascadian portion of California. An example is the publication Cascadia Review, which excludes this county from their definition of "Cascadia."  This would mean that Santa Rosa is not, in fact, the largest city in California Cascadia.  The largest city would then be Eureka. 
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