River Cut

River Cut through the East Side of the Acropolis, Copan, Honduras

"The Copán River has wantonly changed its course to gnaw at the east side of the Acropolis. It has devoured entire several buildings and has washed away thousands of tons of stone, leaving exposed a vertical cut a hundred and eighty-five feet in height.

Seen thus in section, ancient plaza floors and the remains of partially dismantled walls, covered by layer upon layer of later construction, testify to untold centuries of human effort."

Tatiana Proskouriakoff, An Album of Maya Architecture, p. 31