Snow leopards prefer steep, rugged terrain with cliffs, ridges, gullies, and slopes interspersed with rocky outcrops. In Mongolia and Tibet the cats may inhabit relatively flat or rolling terrain if sufficient cover is present. In productive habitat in Nepal, a snow leopard’s home range varies from 12 to 39 km² (4.6 – 15 square miles). But in Mongolia with its open terrain and lower ungulate density, it is 500 km² or more (over 200 square miles). Densities range from less than 0.1 to 10 (or more) individuals per 100 km² (about 39 square miles) but current knowledge is insufficient for generating a reliable range-wide population estimate. The cat’s habitat is among the least productive of the world’s rangelands due to low temperatures, high aridity and harsh climatic conditions.