Digital raster dataset representing the mountain regions in Bhutan. This dataset is prepared based on SRTM 30m resolution DEM showing different classes of mountains in the country defined by the Kapos et al. (2000):

Class 1: elevation > 4500m;

Class 2: elevation 3500–4500m;

Class 3: elevation 2500-3500m;

Class 4: elevation 1500–2500m and slope >= 2deg;

Class 5: elevation 1000–1500m and slope >= 5deg or local elevation range (7km radius) > 300m;

Class 6: elevation 300–1000m and local elevation range (7km radius) > 300m;