Bara-lacha la also known as Bara-lacha Pass, or Bārā Lācha La,(el. 4,890 m or 16,040 ft)is a high mountain pass in Zanskar range,connectig Lahaul district in Himachal Pradesh to Ladakh in Jammu and Kashmir, situated along the Leh–Manali Highway.
The Bhaga river, a tributary of the Chandrabhaga or Chenab river, originates from Surya taal lake, which is situated a few of kilometers from the pass towards Manali. The other major tributary of the Chandrabhaga, the Chandra also originates from glacier in this region.The pass also acts as a water-divide between the Bhaga river and the Yunam river
“The Bara Lacha is the boundary between two separate regions distinguished by their physical characteristics. That which we have already passed through may be called the true Himalayan region. Here the gigantic ranges are covered with perpetual snow, furrowed by glaciers, and they arise from amid dense forests which clothe their flanks up to a certain elevation. They are separated by deep gorges, whose sides are precipices, and though which large rivers flow. In fact the scenery is Alpine.
Henceforward, however, we must bear in mind that we are in the barren or Tibetan region, where green spots are about as rare as islands in the ocean, and universal gravel is the rule.”