Kunzum Pass
Kunzum Pass, is a high mountain pass in the eastern Kunzum Range of the Himalayas. It connects Lahaul valley and Spiti valley. It is on the route from Gramphoo in Lahaul to Kaza the subdivisional headquarters of Spiti. Kunzum Pass on NH505 is from Manali, and from Kaza.
Transport
NH505 over the Kunzum Pass connects Kaza to Manali in the southwest, and Kaurik, Sumdo, Pooh, & Tabo in east. Kaza-Pooh-Tabo-Shimla route is open the whole year, but the Manali-Kaza route is closed for 7 winter months every year, during which Kunzum Pass is closed. NHAI is planning to construct a tunnel under the Kunzum Pass to provide all-weather connectivity between Manali and the Spiti valley. The Kunzum Pass is normally open from June/July to October/November. The dates of opening and closing are dependent on the weather and road repair by the Border Roads Organisation.NH505 from the Manali-Gramphoo side in the west climbs steeply through fifteen sharp hairpin turns from Batal on the Chandra River, testing the driving skills of even experienced drivers. On the Kaza side in east, the road from the small town of Losar runs on the right bank of a tributary of the Spiti. It climbs through a dry, semi-desert landscape up to the Kunzum Pass.