Photo by Matthieu Paley paleyphoto | At the onset of winter, yaks make their way across the valley floor beneath Pakistan's imposing Karakoram range. The surrounding peaks along with the 57-kilometer-long (35 mi) Batura Glacier and its vast moraine act as a natural fence. Shepherds herd the calves and their mothers to the lower valley; calves would otherwise not survive the harsh cold or snow leopard predation. For more insights into our world, follow paleyphoto. #glacierlife #karakoram #mountainlife #glacier