You are standing in a unique location. Behind you, the Trondheim Fjord opens up to the great ocean. To the east, small fjord arms stretch into large forested areas. To the north, the fjord continues its journey. In the time of rock art, Fosen and the westward mountains were only separated from the mainland by a narrow isthmus, where boats could be pulled overland. Fosen shielded the inner sea lane from the great ocean. This was the safe coastal route.

The tectonic uplift after the ice age caused the Evenhus bedrock to emerge from the ocean over 3300 years ago. At that time, the site was a ridge on an island in the middle of the fjord. A shallow strait separated the island from the mainland. For people paddling in small boats, such an island was easy to find, easy to describe and easy to remember: a good meeting place, suitable for leaving a mark by carving images into the rock.