Encarnación de Díaz is a town and municipality located in the far northeast of the state of Jalisco in north-central Mexico. It is located in a natural pass that connects the Los Altos region of Jalisco to points north, and from pre-Hispanic times until the 20th century, it was a major thoroughfare for north-south travel. The town began as a way station along a road built through this pass in the 17th century, formally becoming a town in 1760. It began to function as a municipality in the latter 19th century, but this status was not confirmed until the early 20th. Transport, along with numerous prosperous haciendas supported the economy of the area until the early 20th century, when travel patterns and the Mexican Revolution spurred its decline. In the 1920s, it was a centre of rebellion during the Cristero War, and the town contains Mexico's only museum exclusively dedicated to this episode in history. It also contains a museum dedicated to various naturally occurring mummies which have been found in the municipal cemetery.