Great Mural Rock Art

This group of monuments comprises the site Rock Paintings of Sierra de San Francisco, which is included on the UNESCO World Heritage List.

The existence of the Great Murals was noted by Jesuit missionaries José Mariano Rotea and Francisco Escalante in the eighteenth century.

Mexican journalist Fernando Jordan and archaeologists Barbro Dahlgren and Javier Romero reported on Great Mural sites in the early 1950s.

The Great Murals came to popular attention in the United States through a 1962 Life magazine article by mystery writer Erle Stanley Gardner.

Particularly notable have been the extensive contributions from Clement W. Meighan, Campbell Grant, Harry W. Crosby, Enrique Hambleton, Justin R. Hyland, and María de la Luz Gutiérrez.