The Borasu Pass is located at an elevation of 5450 m above sea level and offers a challenging trek for seasoned Himalayan hikers. The trek begins in Uttarakhand and ends in Himachal Pradesh at Chitkul, the final Indian settlement. This trek is known for its stunning views of pine forests, rivers, mountains, meadows, and lofty Himalayan passes.

The trekking route along Borasu Pass provides breathtaking views of the Swargarohini peak and untouched natural beauty. It starts in Sankri, Uttarakhand, and ends in Chitkul, Himachal Pradesh, passing through the renowned Har ki Dun Valley, known for its vibrant birdlife and majestic peaks. The trek also connects the Tons Valley in Uttarakhand with the Baspa Valley in Himachal Pradesh.

The pathway winds through mountain settlements such as Taluka, Gangaad, Dhatmir, Seema, and Osla, traversing woodlands filled with chestnut, walnut, willow, and chinar trees, as well as stepped mountain farms, expansive meadows, and dense coniferous forests.

The trek is challenging due to the long distances between camps, steep and narrow ridges, rugged terrain, and patches of glaciers with visible and concealed crevasses. Therefore, previous experience in the Himalayas and specific skills are necessary.

The best time to embark on the Borasu Pass Trek is spring and autumn, precisely in May, June, September, and October.