Tianzhu Tibetan Autonomous County is located in Qinghai-Tibet Plateau, Inner Mongolia Plateau and the Loess Plateau area of intersection, located at the eastern end of the Hexi Corridor.

• 天祝藏族自治县地处青藏高原、黄土高原和内蒙古高原的交汇地带，位于河西走廊东端。