This article from national geographics[1] explains it well I think. Objects were lost in the snow by travellers crossing the mountains up to 2000 years ago, ove

This article from national geographics[1] explains it well I think. Objects were lost in the snow by travellers crossing the mountains up to 2000 years ago, over time they got covered in stationary ice (glaciers move and crush items). Now these stationary ice pockets (and glaciers) are slowly melting, leaving well preserved lost items from the old days in its place. [1]: https://www.nationalgeographic.com/history/2020/04/lost-viking-highway-revealed-melting-ice/ https://www.nationalgeographic.com/history/2020/04/lost-viki...