While I do not presently live in the region, I am a PNW native and spend a great deal of time there. I have a large collection of photos, some dating to the 1960s and mostly ones I took, of the area from Alaska south through British Columbia, Washington and Oregon to Northern California and eastwards to Montana and Alberta. As I find time to scan and annotate them, I shall post ones I think might be of interest.
Note that photos without attribution from reblogging or other notation of source are mine, and I retain copyright to them
Cornus Canadensis, dogwood, Mt. Baker-Snoqualmie National Forest, Snohomish County, Washington, 2001.