Stretching along more than 2500 miles of Pacific coastline, the Cascadia Bioregion encompasses all or portions of Washington, Oregon, Idaho, California, Nevada, Wyoming, Montana, Alaska, British Columbia, and Alberta and is defined by the watersheds of the Columbia, Fraser and Snake watersheds. Cascadia stretches from the glacial cold Copper River Watershed in South East Alaska to Cape Mendecino in the South and the Yellowstone Caldera in the East and includes the Cascade Range from Northern California well into Canada.
The delineation of a bioregion is defined through watersheds and ecoregions, with the belief that political boundaries should match ecological and cultural boundaries, and that culture stems from place. Bioregion is short for ‘bio-cultural region’ and are geographically based areas defined by a physical traits; land or soil composition, watershed, climate, flora, and fauna; as well as the cultural traits of the inhabitants that live within them, and act upon them.
In general, the area in and around the Cascadia region is more commonly referred to as the Pacific Northwest. The area’s biomes and ecoregions are distinct from surrounding areas. The resource-rich Salish Sea (or Georgia Basin) is shared between British Columbia and Washington, and the Pacific temperate rain forests, comprising the world’s largest temperate rain forest zone, stretch along the coast from Alaska to California.
Cascadia contains the largest tracts of untouched old growth temperate rainforests in the world, including 7 of the top 10 worlds carbon absorbing forests, the worlds tallest trees, thousands of volcanoes, hot springs, rivers, lakes, inlets, island and ocean, and some of the last diminishing, though still impressive wild habitats of salmon, wolves, bear, whale, orca. In all – more than 350 bird and mammal species, 48 reptiles, hundreds of fungi, lichen, and and thousands of invertebrates and soil organisms call Cascadia home.