The Caverns Historic District comprises the central developed area of Carlsbad Caverns National Park. The complex was built between the early 1920s and 1942, initially in Pueblo Revival style, and later in New Mexico Territorial Revival style in the area around the natural entrance to Carlsbad Caverns. The earlier structures are built of local limestone, the later buildings in adobe. Thirteen buildings in the district are considered contributing structures. Buildings built between 1940 and 1942 were constructed with labor provided by the Civilian Conservation Corps.