You might want to check out the types of trees in the Trinity Alps in Trinity County, CA.
Tahoe is on the other side of the valley and has forest comprised of different types of trees.
The forest in the Alps does not have redwood trees in that conditions are far too arid for that type of tree.
The forests in Trinity County are mostly fir and pine with black and white oaks and madrone. At the higher elevations the vegetation changes.
Smiles,
Lyn