India's Sikkim state lies to the west of the Dongkya range, the western shoulder of the Doklam plateau and the 'southwest spur' issuing from Mount Gipmochi. The Zompelri ridge separates Bhutan's Haa District (to the north) and the Samtse (to the south). Bhutan's claimed border runs along the northern ridge of the Doklam plateau until Sinchela and then moves down the valley to the Amo Chu river. China's claim of the border includes the entire Doklam area within the Chumbi Valley, ending at the Zompelri ridge on the south and the joining point of the Doklam river on the east.