Peter I Range is located in the south-east of Jirgatol district in Tajikistan's Region of Republican Subordination. It forms a westerly extension of the northern Pamirs, separating the watersheds of the Surchob in the north and the Obikhingou river in the south. The range stretches in a roughly east-west direction for about 200 km, connecting with the Academy of Sciences Range at its eastern end.