This Stefan Salvatore photo contains
sitka spruce, picea sitchensis, american white birch, paper birch, paperbark birch, canoe birch, betula cordifolia, betula papyrifera, ponderosa, ponderosa pine, western yellow pine, bull pine, and pinus ponderosa.
There might also be
beech, beech tree, birch, birch tree, and douglas fir.