I visited the petroglyphs at Ausevika, which is one of the largest rock carving sites in Norway. Some rock carving fields may be a little disappointing to visit, as they can be hard to reach and then there are only a few carvings to look at. But Ausevika has over 300 carvings with lots of variation in the symbols used. I highly recommend visiting the site.
Dating of the Ausevika site is disputed. The carvings have a somewhat unique style, and they may have been creating over a long period of time since there are so many of them.
Blogpost about interpreting one of the Ausevika figures here: https://andersgoliversen.com/blog/2023/03/21/ausevika-figure-interpretation-1/