Great Gobi A Strictly Protected Area is a nature reserve in Gobi desert, situated in the south-western part of Mongolia at the border with China. A similar reserve in the Gobi exists further 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. Great Gobi A is one of the last refuges for critically endangered animals, like wild Bactrian camels and Gobi bears.