kalindi Khal is a high-altitude trekking expedition from Gangotri to Badrinath in the Garhwal Himalayan region of India, which is to be organized by experienced mountaineers and trekkers of West Bengal, India in the month of September, 2015. This 99 kilometer challenging trek route passes through more than ten Himalayan glaciers like Gangotri, Raktabaran, Chaturangi, Basuki, Sweta, Sita, Arwa, Bidum etc. and one of the most breathtaking mountain-scape under the shadow of great peaks of Garhwal like Mt. Bhagirathi I, II, III, Mt. Shivling, Mt. Vasuki, Mt. Chandraparvat, Mt. Meru, Mt. Kalindi, Avalanche Peak etc. Scree, hidden crevasses, rock-fall zones, avalanche-prone areas, white-outs make this trek route extremely difficult to traverse. Kalindi Khal pass, the highest point of trek route, which is 19,510 feet or 5,948 metres above from sea-level, take a toll on the health of the trekkers, due to the high altitude and steep ascent. Himalaya. This high altitude expedition commences from Gangotri, and its end point is Badrinath, which is reached via Kalindikhal. The main stopovers of the trekking tour are Tapovan (4250 m), Nandanvan (4500 m), Vasuki Tal (5300 m), Kalindi Base (5590 m), Kalindikhal (5948 m), Arwa Tal (3980 m), and Gashtoli (3600 m). Further, the terrain of this trekking trail adds actual thrill to the tour, as it is covered with scree, snow, glaciers and boulders. Another uniqueness of the trail is that it lets you explore half of Garhwal from the Bhagirathi river valley to the Alaknanda river valley. Besides, it also amazes you with the sight of various peaks like Satopanth, Vasuki, Bhagirathi, Shivling and Chandra Parvat. Offering a visit to some of the most popular Hindu religious sites and a varied variety of mammals, the Kalindikhal Pass Trek is known to be one of the most celebrated treks in the Garhwal region of the Himalayas. Also one of the most difficult treks of the Himalayas, it is ideal for physically fit expert trekkers. The high- altitude expedition starts from Gangotri and end at Badrinath where you reach via Kalindikhal. Boulders, scree, glaciers and snow, make the trek a challenging one. During the trek, there are halts at Tapovan (4250 m), Nandanvan (4500 m), Vasuki Tal (5300 m), Kalindi Base (5590 m), Kalindikhal (5948 m), Arwa Tal (3980 m), and Gashtoli (3600 m). The highlight of this route is that it offers you a chance to visit half of the Garhwal region, from the River Bhagirathi valley to the River Alaknanda valley. You can also see snow-clothed peaks such as Shivling, Satopanth, Vasuki, Chandra Parvat, and Bhagirathi.Gangotri is the main source of the Bhagirathi River, an important tributary of the Ganges. Other glaciers like Raktabaran, Chaturangi, Basuki, Sweta, Sita, Arwa, Bidum etc. are also the life line for Bhagirathi and Ganges, the main source of water in Northern as well as Eastern India. Due to global worming the glaciers are getting reduced gradually. Due to these rapid variations, the geographical features of the whole region are getting transformed constantly. The high-resolution images captured in the trekking expedition will help the volunteers for documentation purpose and enrichment of existing articles. The overall purpose of Wikipedia Treks Kalindi Khal is to increase the material related to Himalayan Range with a free license in Wikimedia Commons and improve the quality and increase the amount of articles about diversifying Garhwal Himalayan mountain range and other respective variety in different languages in Wikipedia. Reaching out to the majority of Himalayan mountain range during this trekking program will not only raise awareness among various community chapters, but also motivate them to contribute to the Wikimedia projects and organize this kind of trekking expedition in future.