Where is Cascadia?
The borders of Cascadia have changed through time, and they remain fluid even in the present day. Taking the Oregon Country as their guide, modern Cascadians have a range of visions, from those that include only the modern states of Washington and Oregon (the so-called “little Cascadia”) right through those that add Alaska, Yukon, British Columbia, Idaho, Western Montana, and Northern California (the so-called “Cascadian Empire”).
Most proposals, though, are centered on the vision advanced by the the Sightline Institute. This version of Cascadia is the Cascadia bioregion, defined by the watersheds of the rivers that flow into the Pacific Ocean through North America’s temperate rainforest zone.