The 187-acre Nuestra Senora Reina de La Paz in Keene, in the Tehachapi Mountains foothills southeast of Bakersfield, was headquarters of the United Farm Workers and Chavez's residence from 1971 to 1993. It is now home to the National Chavez Center, where Chavez was buried in 1993.
The Los Angeles Times says Interior Secretary Ken Salazar announced the National Register of Historic Places designation during a gathering of the Congressional Hispanic Caucus Institute in Washington on Wednesday night.
Chavez led United Farm Workers union grape boycotts and raised awareness of the plight Hispanic agricultural workers.
Information from: Los Angeles Times