Everybody pitches in during the cattle separation, including the children in Altai Mountains, Mongolia, September 2016. Follow these nomadic families across the brutal landscape of Mongolia as they move their entire lives 150km through the mountains. Largely based in Western Mongolia, Kazakhs are a nomadic people who brave blizzards, extreme hot and cold weather and rocky mountain paths several times a year when they move between their seasonal homes.Videographer and photographer Joel Santos ventured to Mongolia’s Altai mountain range twice to shadow families – who have never let an outsider into their camps – as they made the breathtaking journey between seasonal homes. (Photo by Joel Santos/Barcroft Images)





Everybody pitches in during the cattle separation, including the children in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





Sailau poses for a photo with his wife and grandchildren in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





The Kazakh people rely entirely on their livestock for meat, milk and to support themselves in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





Throughout the migration periods, Kazakh nomad families that share the same migration routes try to arrange different dates for their movements, so they can prevent the cattle to mix up, but it’s still common to meet another families on the way in Altai Mountains, Mongolia, June 2015. (Photo by Joel Santos/Barcroft Images)





Joel's drone captures a stunning view of the family's goats and sheep trekking across harsh terrain in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





Kazakhs are a nomadic people and move between their seasonal homes several times a year in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





Sailau's son takes a ell-deserved rest inside the Ger, which is decorated with an intricate structure and colourful carpets and hunting trophies in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





The journey can be hard on young members of the family but they are taught from a young about the Kazakh way of life in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





Joel said documenting the Kazakh nomad summer migration was really an epic journey – a time travel journey – and at the same time was possible to get an understanding of how the balance of nature is still possible in Altai Mountains, Mongolia, June 2015. (Photo by Joel Santos/Barcroft Images)





Sailau, father of three, is the patriarch of his family and also a retired eagle hunter in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





The Kazakh people rely entirely on their livestock for meat, milk and to support themselves in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





Kazakhs are a nomadic people and move between their seasonal homes several times a year in Altai Mountains, Mongolia, September 2016. (Photo by Joel Santos/Barcroft Images)





One of the Kudha family wades through the cold waters with his horse in Altai Mountains, Mongolia, June 2015. (Photo by Joel Santos/Barcroft Images)





The Ger is one of the nomadic life pillars, it looks like an oversized tent but is actually supported by a set of wooden sticks and covered in sheep fur in Altai Mountains, Mongolia, June 2015. (Photo by Joel Santos/Barcroft Images)