Situated amidst the lush green meadows of the Uttarkashi district, the most beautiful part of the Garhwal region with its magnificent snowclad peaks and glaciers, the sanctuary is spread over an area of 953 sq. kms.
Uttarkashi is a regional centre, 155-kms. from Rishikesh and is the administrative headquarters of the district. Several trekking companies operate from here and the town is also the base for the Nehru Institute of Mountaineering, where Bachhendri Pal, the first Indian woman to climb to the summit of Mt Everest, was trained. The town is pleasantly situated on the banks of the Bhagirathi River, drawing pilgrims to its Vishwanatha Temple, sacred to Shiva.