This broad feature is heavily forested with aspen, spruce-fir, ponderosa pine, and pinyon-juniper woodland, and stands in sharp contrast to the arid lowlands encircling it.
en.wikipedia.org Usually, there is birch and aspen in the second layer, lowland maple, crab apple and field-ash in the third layer.
en.wikipedia.org In the reserve there are numerous small rivers along which dogwoods, aspens, black poplar and willows grow.
en.wikipedia.org Pines and firs, birch, aspen, elm, ash, and lime grow, and oaks occur in small woods all over land.
en.wikipedia.org Valley trees include white spruce, black spruce, tamarack larch, balsam fir, jack pine, quaking aspen, balsam poplar, and paper birch.
en.wikipedia.org