The Great Gobi A Strictly Protected Area is a nature reserve in the Gobi Desert, situated in the southwestern part of Mongolia at the border with China. A similar reserve in the Gobi exists farther to the west - the Great Gobi B Strictly Protected Area. Both reserves form one unit, the Great Gobi Strictly Protected Area (SPA), which encompasses a total of 53,000 km2 (20,000 sq mi). Great Gobi A is one of the last refuges for critically endangered animals such as the wild Bactrian camel and the Gobi bear.