Geography of Mongolia 10,560 square kilometres, or 0.67% of the country. Mongolia is high, cold, and dry. It has an extreme continental climate with long, cold winters and short summers, during which most precipitation falls. The country averages 257 cloudless days a year, and it is usually at the center of a region of high atmospheric pressure. Precipitation is highest in the north, which averages per year, and lowest in the south, which receives . The extreme south is the Gobi Desert, some regions of which receive no precipitation at all in most years. The name Gobi is a Mongol word meaning desert,
Gurbantünggüt Desert but now has mostly dried out, and the Ailik Lake (), which receives water from the Baiyang River (which in its turn is replenished by the Irtysh–Karamay Canal). China National Highway 216 crosses the desert in the north-south direction, from Altay City to Ürümqi. China National Highway 217 and the Kuytun–Beitun Railway skirt it from the west and northwest. The Ürümqi–Dzungaria Railway reaches into the desert's southeastern corner, known locally as "Jiangjun Gobi" (将军戈壁, "General's Desert"). The climate of the area is temperate, but very continental. The desert's ecological environment is very fragile, and the impact of human activities on