Bole as the official romanized name, also transliterated from Mongolian as Bortala, is a county-level city in Xinjiang, China. The city covers an area of 7,517 square kilometres (2,902 sq mi) and as of 2003[update] had a total population of 403,700 (2003). Bortala means "brown grasslands/steppe" in Mongolian. Bortala is the seat of Bortala Mongol Autonomous Prefecture, which borders Kazakhstan. The Northern Xinjiang Railway runs through the city along with highways to Ürümqi.