> It's right there in the pictures, layered strata, rock shelf, carvings on rock collapsed off of the shelf. It isn't. The article says: > The rock carvings

> It's right there in the pictures, layered strata, rock shelf, carvings on rock collapsed off of the shelf. It isn't. The article says: > The rock carvings are not usually visible because they are covered by the waters of the Negro River, whose flow recorded its lowest level in 121 years last week. There is no mention of "collapse", "strata" or "shelf". Are we looking at the same info?!?