This R5 photo contains
ponderosa, ponderosa pine, western yellow pine, bull pine, pinus ponderosa, sitka spruce, picea sitchensis, and douglas fir.
There might also be
mountain hemlock, black hemlock, tsuga mertensiana, hemlock, hemlock tree, american white birch, paper birch, paperbark birch, canoe birch, betula cordifolia, and betula papyrifera.