Cuarenta Casas, Archaeological cliff dwelling in Casas Grandes Municipality, Mexico.

Cuarenta Casas is an archaeological site featuring dwelling structures made of adobe and stone built into natural caves along the Huapoca Canyon walls. The buildings contain multiple interconnected rooms with varying sizes and purposes organized throughout the rock shelters.

The site was built between 1205 and 1260, during the peak of the Paquimé settlement and the late Mogollon culture period. This era saw strong population growth and cultural development across the northern region.

The T-shaped doorways and stuccoed floors show how the people who lived here built and used their homes. These building methods were typical of those who inhabited the region and left their mark in the canyon walls.

The site lies 45 km north of Madera in the Sierra Madre Occidental. The Huápoca group is reached 36 km west of Madera over a dirt road, and Cueva Grande 66 km west, also by dirt road. Of the caves, only Cueva de las Ventanas has been partly restored and is open to visitors; the others are seen from a distance and are not accessible to the public.

The name "Cuarenta Casas" comes from Álvar Núñez Cabeza de Vaca, who in the early 16th century wrote of finding "forty houses" after pushing more than 50 leagues inland. Fewer than forty structures stand today, and only the Cueva de las Ventanas has been partly restored; its rooms can be visited, the rest are seen from a distance.