Uttarakhand lies on the southern slope of the Himalaya range, and the climate and vegetation vary greatly with elevation, from glaciers at the highest elevations to tropical forests at the lower elevations. The highest elevations are covered by ice and bare rock. Nanda Devi is the highest land point of Uttarakhand with the altitude of above sea level. Sharda Sagar Reservoir is the lowest land point of Uttarakhand with the altitude of . Western Himalayan alpine shrub and meadows occur between : tundra and alpine meadows cover the highest elevations, Rhododendron-dominated shrublands cover the lower elevations. Western Himalayan subalpine conifer forests lie just below the tree line; at elevation they transition to western Himalayan broadleaf forests, which lie in a belt from elevation. Below elevation lie the Himalayan subtropical pine forests. The drier Terai-Duar savanna and grasslands belt and the Upper Gangetic Plains moist deciduous forests cover the lowlands along the Uttar Pradesh border. This belt is locally known as Bhabar. These lowland forests have mostly been cleared for agriculture, but a few pockets remain.