This archeological district consists of more than 20 sites, mostly associated with the Dismal River/Plains Apache culture, dating from c CE 1650 to 1750. The principal site is a pueblo ruin thought to have been built by Taos Indians who sought refuge with the Apache during times of trouble with the Spanish. It is the northeasternmost example of a pueblo in the country. The site also illustrates Spanish explorations in the Great Plains that predates those of the United States.