It is found in aspen-coniferous forests on altitudes between 2,440 and 2,715 meters.
en.wikipedia.org Big-tooth aspens can tolerate sandy uplands and high, rocky sites.
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 Stands of deciduous trees such as trembling aspen and white birch may also be found in the park.
en.wikipedia.org 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