The Park's plant cover is roughly 33% moist coniferous forest, 29% barren or sparsely vegetated rock/snow/ice, 16% dry coniferous forest, 8% dry meadow and prairie, 6% deciduous forest (primarily aspen and black cottonwood), 5% wet meadow or fen, and 3% lake surface water (with aquatic plants occurring in the shallower zones). West of the Divide.