Pancha Kedar. Trace the mountain ranges which the four - Kinnaur Kailash, Manimahesh, Srikhand Mahadev and Adi Kailash are a part of, you will get a loose boundary of Zhangzhung. 5 is Mt Kailash which completes the circuit. By the way, the capital city is also in this area(near that word between 1 & 5).