Week-Long Treks in Uttarakhand (6–10 Days)

Pangarchulla Peak Trek (4,700m) – The Ultimate Spring Summit

4,700 m (15,419 ft) · 6 Days / 5 Nights · Challenging · March, April, May

Pangarchulla Peak, towering at 4,700 metres (15,419 ft), is widely considered the ultimate springboard for trekkers who wish to graduate from high-altitude hiking into the world of technical mountaineering. Located in the deeply rugged Nanda Devi Biosphere Reserve, the expedition begins from Joshimath and shares its initial route with the famous Lord Curzon Trail (Kuari Pass). However, while Kuari Pass gently meanders across a ridge, Pangarchulla forces you upwards, confronting you with aggressive snow slopes, boulder moraines, and knife-edge ridges. The expedition is defined by its dramatic dual nature. The first three days are relatively forgiving. You walk through incredibly dense, silent forests of oak and rhododendron, emerging onto vast, sprawling alpine meadows like Gorson Bugyal and Khullara. You acclimatize slowly, enjoying massive views of Mount Dronagiri. But on Day 5, the trek transforms violently. The summit push demands an "alpine start"—waking up at 2:00 AM, donning microspikes, and climbing 1,200 vertical metres in the freezing darkness to ensure you cross the treacherous snow bridges before the morning sun melts them. This trek is absolutely not for beginners. Trekkers must possess exceptional cardiovascular fitness, sheer mental grit, and prior experience hiking above 12,000 feet. For those who brave the physical punishment, the reward is an uncompromised, 360-degree amphitheatre of the greatest mountains in the Indian Himalayas, starring Mount Nanda Devi, Chaukhamba, Kamet, and Hathi Parbat. Pangarchulla is uniquely seasonal; it is almost exclusively attempted in the spring (April and May) when the snow is deep and consolidated enough for safe climbing.

Roopkund Trek (4,800m) – The Skeleton Lake Expedition

4,800 m (15,750 ft) · 7 Days / 6 Nights · Challenging · May, June, September …

The Roopkund Trek is the undisputed legend of the Indian Himalayas. Starting from the basecamp of Lohajung in Uttarakhand, this 7-day, 53-kilometre expedition pushes trekkers to a staggering altitude of 4,800 metres (15,750 feet). The final destination is a shallow glacial lake, locked in ice for most of the year, famous for the hundreds of ancient human skeletons visible in its waters—remains that radiocarbon dating traces back to a catastrophic hailstorm in the 9th century. While the macabre history of the lake is the primary draw, the actual journey there is what makes Roopkund structurally flawless as a trekking route. The trail acts as a textbook showcase of Himalayan biomes. You begin in dense, ancient forests of rhododendron and oak, climb out above the tree line onto the twin alpine meadows of Ali and Bedni Bugyal—which roll endlessly like green velvet oceans—and finally enter a hostile, high-altitude alpine zone of black rock, sharp scree, and permanent snow at Bhagwabasa and Roopkund. This is a challenging trek. It is NOT for beginners. The altitude gain is aggressive, the air is thin, and the weather above 14,000 feet is notoriously unpredictable. Trekkers must possess excellent cardiovascular endurance and prior high-altitude experience (such as Kuari Pass or Kedarkantha). For those prepared, Roopkund offers an unparalleled sense of achievement and the absolute sharpest, most intimidating views of the Trishul and Nanda Ghunti massifs available in Garhwal.

Milam Glacier Trek (3,450m) – The Old Indo-Tibet Trade Route

3,450 m (11,318 ft) · 10 Days / 9 Nights · Challenging · May, June, September …

The Milam Glacier Trek is one of the longest and most culturally significant expeditions in the Indian Himalayas. Located in the remote Pithoragarh district of the Kumaon region, this 10-day, 118-kilometre journey begins from the spectacular town of Munsiyari. It follows the exact route of the ancient Indo-Tibetan trade corridor through the Johar Valley. The destination is the massive Milam Glacier—a 16-kilometre long river of ancient ice that serves as the treacherous source of the roaring Goriganga River. While the glacier is the physical objective, the soul of this trek lies in its history. As you trek progressively deeper into the valley, you encounter the "ghost villages" of the Bhotiya people. Settlements like Bogudiar, Martoli, and Bilju were once fiercely wealthy trading hubs. Following the 1962 Indo-China war and the subsequent locking of the Tibetan borders, the economy collapsed, and the villages were largely abandoned overnight. Trekking through Martoli, with its hundreds of empty stone houses sitting completely silently against the massive backdrop of the Nanda Devi East and Trishuli peaks, is a profoundly haunting experience. From a physical standpoint, the Milam Glacier trek is a masterclass in endurance. Interestingly, the altitude ceiling is relatively low (peaking at roughly 3,450 metres / 11,318 ft), completely neutralizing the severe risks of Acute Mountain Sickness (AMS). The true difficulty is simply the relentless distance. You must walk for 5 to 8 hours daily over undulating, sometimes heavily broken trails, crossing terrifyingly powerful rivers via basic suspension bridges, and scrambling over chaotic boulder moraines near the glacier snout. It is explicitly designed for seasoned trekkers looking to graduate from 5-day climbs to true, multi-week Himalayan survival.

Har Ki Dun Trek (3,566m) – The Valley of Gods

3,566 m (11,700 ft) · 7 Days / 6 Nights · Moderate · April, May, June …

Har Ki Dun, widely referred to as the Valley of Gods, is a legendary 7-day trek starting from the basecamp village of Sankri in Uttarakhand. Set deep within the protected Govind Pashu Vihar National Park, the trail follows the magnificent Supin River all the way to a spectacular, cradle-shaped glacial valley sitting at 3,566 metres (11,700 ft). Unlike demanding summit expeditions like Kedarkantha or Pangarchulla, the Har Ki Dun trek is defined by its gradual, forgiving altitude profile and its immense cultural richness. Over the course of 47 kilometres, trekkers weave in and out of dense forests of blue pine, silver birch, and Himalayan oak. The trail passes directly through isolated, historic mountain hamlets like Gangad, Puari, and the famous Osla village, where wooden houses with intricate carvings dangle off the sheer valley walls. The isolation of these villages means the culture is astonishingly preserved; traditional weaving, ancient farming practices, and unique local deities define everyday life here. The trek culminates at the Har Ki Dun valley itself—a sprawling, intensely green meadow intersected by glacial streams, sitting directly beneath the monumental Swargarohini Massif. According to the Mahabharata, Swargarohini (literally "Stairway to Heaven") is the peak the Pandavas climbed to reach the afterlife. Sitting in the meadow, watching the sunset paint Swargarohini gold, it is impossible not to feel the deep, spiritual gravity of the landscape. Because of its manageable altitude and well-defined trail, Har Ki Dun is the absolute gold standard for families, beginners, and anyone looking for a long, deeply immersive Himalayan walk without extreme physical punishment.