Petroglyph or Mother Nature?

A friend in Washington State explains she loves exploring petroglyphs.

With no shortage of rock formations in the Northwest she keeps very busy, although.  She was initially fooled by some recent pictures I sent her way.  One resembles an angry child.  It’s a natural formation along the Missouri River Canyon in Montana.  The rock face looks like eyes and a frowning and open mouth.  Mother Nature is responsible.

The same for a formation named the elephant by a tour guide 140 years ago.  The guide also spotted a rock formation resembling a crocodile.

When I was a boy there was a bluff on an old dirt road known to the Boy Scouts as Indian head.  It looked like a man staring westward from the top of a cliff.  More than 40 years later I assume it still stands.