Large boulders in the Bhagirathi river in Gangotri (India)
Gangotri is an important Hindu pilgrimage destination on the Bhagirathi river, high in the Himalaya mountains. The Bhagirathi is one of the headstreams of the Ganges river.
In Gangotri, the Bhagirathi river bed if filled with massive boulders that may have been brought there by huge floods or maybe pushed by glaciers.
This was the early spring, so the river was still low. Later in the season, the warmer weather would melt the snow and ice of the glaciers and the water level would rise a lot.