Guidebook to 8 treks in the Uttarakhand Himalaya, including the Nanda Devi Sanctuary, the Valley of the Flowers and the source of the Ganges. Ranging from 4 to 10 days, the trekking routes take in soaring mountains such as Shivling, alpine meadows, glaciers, holy sites and national parks with protected species such as snow leopard and musk deer.