Following shortly after Breton, anthropologist Carl Lumholtz journeyed through the Tequila Valleys as part of his travels south from Phoenix, Arizona through the Sierra Madre Occidental to Michoacán. While Lumholtz did not record a visit to Los Guachimontones itself, did acquire ceramic vessels from the nearby town of Estanzuela to the southeast of Teuchitlán. Of some importance are the photos Lumholtz took of Laguna Magdalena showing the extent of some of its shoreline before the lake was largely drained in the 1930s to create arable land. Laguna Magdalena would have provided important lacustrine resources to the Teuchitlán culture in the form of fish, reeds, lake fowl, and other goods.