Rohtang Pass (situated at an elevation of 3,978 m),  51 KM from Manali, is a high mountain pass that connects the Kullu Valley with the Lahul and Spiti valleys of Himachal Pradesh, India.It has become a summer tourist spot, due to the rising popularity of Manali, and excellent roads maintained by Border Road Organization. Most visitors to Manali make it a point to visit Rohtang Pass which is snow laden even in summer.

The pass is open from May to November, has a reputation for being very dangerous because of unpredictable snowstorms and high winds.

The pass provides a natural cultural divide between middle Himalayas and its primarily Hindu culture, with the dry desert uplands north of the Pir Panjal (first range of the greater Himalayas; and its mainly Buddhist and Tibetan-influenced culture. On the southern face of this pass there is a spot called Beas Kund which is the the origin of river Beas.

 The road through the Kullu Valley, past Manali and over the Rohtang Pass to Keylong, and Lahul and on to Ladakh, has become very busy during the summer months as an alternate a military route following the Kargil Conflict and, because of the troubles in Kashmir. Hire a taxi from Manali to reach Rohtang. Shared jeeps are also available. Source:wikipedia