- The New Mexico counties of Rio Arriba, Santa Fe, and Taos.
- Congress established the Northern Rio Grande National Heritage Area on October 12, 2006, to assist local communities and residents in preserving the unique cultural, historical and natural resources in the New Mexico counties of Rio Arriba, Taos, and Santa Fe.
- National Heritage Area
Stretching from Albuquerque to the Colorado border, the Northern Rio Grande National Heritage Area includes Santa Fe, Rio Arriba, and Taos counties. It encompasses a mosaic of cultures, including the Jicarilla Apache, eight Pueblo tribes, and the descendants of Spanish colonists who settled in the area beginning in 1598—a generation before the Mayflower landed at Plymouth Rock.
The Northern Rio Grande National Heritage Area, Inc., a non-profit corporation chartered in the State of New Mexico, serves as the local coordinating body for the heritage area.