Sweden and Norway are working together to better preserve thousand-year-old rock carvings, like the ones found on runestones.
Freezing water in the winter, lichens, algae and moss, and tree roots are the main sources of erosions and damage.
The project, called Samhell, has kicked off this month and will be partly funded by the EU. The total cost of the project is expected to cost 8 million SEK.
Related stories from around the North:
Finland: Finnish Heritage Agency scouring countryside for ancient monuments, Yle News
Iceland: Horses buried with Icelandic Viking nobles were male, ancient DNA shows, CBC News
Russia: Canadian researchers count on Siberian reindeer herders to solve archaeological mystery, Radio Canada International
United States: Historic buildings crumbling in Anchorage, Alaska face an uncertain future, CBC News