I’m in the hills on the east side of the Willamette Valley, midway between Eugene and Salem. Trees grow around here whether you want them to or not. Mostly Douglas Fir, with a few pines.
There is a huge Weyerhauser tree farm just 1/2 a mile east. All Douglas Fir.
Douglas Fir and Western Hemlock are the predominate coastal species. There is a little Sitka Spruce growing up on the Olympic. South and east of you there is Grand Fir and White Fir. Farther east there will be Western Larch, Engleman Spruce and Lodgepole Pine. The biggest species east of the Cascades is Ponderosa Pine. This ends up in all your millwork items like doors and windows.
In 2010 I went to a Weyerhauser farm near Coos Bay, to photograph forestry equipment (ironically enough, for this thread). I think they said this "farm" was something like 30 miles by 60 miles, but don't quote me on that. Incidentally, they planted three trees for every one they harvested.