I visited the petroglyphs at Evenhus in Frosta on the 2nd of July 2022. The site is located just behind a small Café along the road, and there is a sign indicating that you can park there to see the petroglyphs.
The carvings at Evenhus are dated to around 2000 BCE, which was near the end of the Nordic Stone Age (10,000 BCE – 1800 BCE). The site features many boat, deer and whale figures. Most of the boat figures seem to be of the canoe-type, and not the kind of larger ships often seen depicted in Bronze Age petroglyphs. The animal figures are difficult to precisely identify, but they seem to be animals in the deer family such as moose, reindeer or red deer. The whale figures are also too vaguely drawn to identify, but they look like they present whales and not fish.