KIRUNA, Sweden (AP) — High atop the Luossavaara Mountain in northern Sweden, Sami reindeer herder Lars-Marcus Kuhmunen mapped out a bleak future for himself and other Indigenous people whose reindeer have roamed this land for thousands of years.

An expanding iron-ore mine and a deposit of rare-earth minerals are fragmenting the land and altering ancient reindeer migration routes. But with the Arctic warming four times faster than the rest of the planet, herders say they need more geographic flexibility, not less, to ensure the animals’ survival.

If a mine is established at the deposit of rare-earth minerals called Per Geijer, which Sweden heralds as Europe’s largest, Kuhmunen said it could completely cut off the migration routes used by the Sami village of Gabna.

That would be the end of the Indigenous way of life for Kuhmunen, his children and their fellow Sami reindeer herders, he said, in this far-north corner of Sweden some 124 miles above the Arctic Circle.

“The reindeer is the fundamental base of the Sami culture in Sweden,” Kuhmunen said. “Everything is founded around the reindeers: The food, the language, the knowledge of mountains. Everything is founded around the reindeer herding. If that ceases to exist, the Sami culture will also cease to exist.”