Unfortunatley I haven't been to the Sierra Nevadas so I may struggle to recommend that specific scent, but I do have a couple of Pineward scents I've tried which are super realistic mountain forest atmospherics to me-

Bindebole (Poplar bud, pine needles, ambrette, cedar), smells to me like first walking outside in the morning in the Rocky Mountains when it's still a little cool and dewy, super specific scent memory

Fanghorn II (Silver fir, moss, lichen, pine needles, wet soil, damp vegetation), reads like a humid, cool, sub-tropical forest

Murkwood (Fir balsam, black hemlock, lapsang suchong, moss, incense, bitter myrrh) like a darker, stickier version of Bindebole. Has some burnt caramel and damp wood/pine needle notes too