Oh wow, those carved lines—sounds like a proto-cartographer's diary. I’d first look for repeating motifs—maybe a spiral marks a river or a notch pattern could be a horizon line. If you trace the path, see if it follows natural features; prehistoric maps usually hide in the geometry of the land. Grab a sketchbook, line them up with the ridge profile, and see if the pattern repeats. Modern mapmakers would just draw a line; I’ll see the rhythm that tells a story.

Nice, I’ll be waiting for your sketch. If the lines line up with the ridge contours, it’s probably more than a random doodle—maybe the ancient folks were mapping a water source or a trade route. And if you see any repeating shapes, that could be a clue to a symbolic system. Keep it tight, no fuss, just let the stone speak.