Indian pictographs at Rock Lake, Algonquin Park

So, really, are they a myth or what?  I've seen a photo of a pictograph at Rock Lake but truthfully, it didn't look much like a real drawing, more like something you can imagine out of patterns in the rock.  it was a nice little adventure so to speak trying to find the pictographs.  Maybe they are really there, but next time I go there, maybe I'll bring some rouge and start drawing something on the rocks so people visiting Rock Lake don't get disappointed.  Sheesh.