Sara Umga Animal Pass Trek stands as one of the most exhilarating and challenging trek in the Himachal Himalayas. This high-altitude connects the lush, verdant landscapes of the Parvati Valley in Kullu to the stark, lunar-like terrain of Lahaul. Designed for seasoned trekkers, this itinerary offers a rare double-pass experience, pushing the boundaries of endurance while rewarding adventurers with unparalleled views of the Tosh Glacier and the towering peaks of the Pir Panjal range.
This trek commences in the rustic village of Barsaini (2,200 m), a hub of Himalayan culture. The initial phase of the trek transitions quickly from the civilization of Tosh into the deep wilderness. As you ascend toward Buddhaban (3,020 m) and onward to Sharam Thach, the trail winds through dense forests of oak and rhododendron, eventually giving way to the sprawling alpine meadows (thachs) that characterize the middle-altitude camps. These meadows serve as vital acclimatization points, offering trekkers a chance to adjust to the thinning air while surrounded by grazing herds and the distant roar of glacial streams.
True test of the trek begins on Day 5, with a demanding excursion to Animal Pass (4,560 m). This segment is a masterclass in Himalayan topography, featuring steep scree slopes and moraine ridges. Reaching the pass provides a panoramic vantage point of the surrounding glaciers, acting as a "summit" experience before the team prepares for the primary objective.
Traverse of Sara Umga Pass (4,700 m) on Day 7 is the undisputed highlight. This crossing is both physically grueling and visually spectacular. Standing atop the pass, trekkers find themselves between two worlds: the emerald valleys of Kullu behind them and the rugged, desert-like mountains of Lahaul ahead. The descent toward Putiruni introduces a dramatic shift in scenery, where the vegetation vanishes, replaced by the stark beauty of the Chandra River valley.
This trek is more than just a physical challenge; it is a geographic journey through shifting ecosystems and high-altitude microclimates. With a built-in buffer day to account for the unpredictable Himalayan weather, the Sara Umga and Animal Pass trek remains a bucket-list achievement for those seeking to master the high passes of Northern India.