A very popular rock wall with the alternative history crowd. The Montana Sage Wall.

Some think it's evidence to question the status-quo on the ancient history of the Americas and that it was built by a much earlier civilization.

From initial images to my rather untrained eye it does look very convincing...

...for about 5 minutes.

Picture 1 & 2 is the Montana Sage Rock Wall

Picture 3-5 alternative views that (to me at least) immediately debunk it.

Pictures 6 & 7 are other similar formations. Dartmoor and Joshua Park.

Just erosion in suspiciously uniformed patterns isn't it...