This digitized selection from the Augustus and Alice Dixon Le Plongeon papers contains card photographs and loose photographs that record ancient architecture, sculpture, city views, and ethnographic observations at the Maya sites of Chichén Itzá, Uxmal, Ake, and Mayapan. Several photographs document the Le Plongeons' discovery of the Chac Mool sculpture in the Platform of the Eagles and the Jaguars at Chichén Itzá.

Augustus Le Plongeon (1826–1908) and Alice Dixon Le Plongeon (1851–1910) were the first people to systematically excavate and photograph the Maya sites of Chichén Itzá and Uxmal. Alice was an English photographer and Augustus was a French medical doctor, photographer, antiquarian, and amateur archaeologist. They devoted themselves to excavating, documenting, and interpreting ruins of the Yucatán peninsula and to understanding Maya culture.