
Douglas-fir Zone
Pseudotsuga menziesii
Where this tree is found: low to upper elevations
throughout the park
Where this zone is found: low to upper elevations;
dry habitat; primarily east of the Cascade Crest
Although Douglas-firs are found throughout the North Cascades at low to upper elevations, only in drier climates which depend on frequent fire can it establish itself as the dominant species.