The Forty Acres, located in Delano, California, was the first headquarters of the United Farm Workers labor union.

[2] The Forty Acres is best known as the workplace of labor activist Cesar Chavez during the Delano grape strike of the 1960s.

Chavez first drew national attention to the complex in 1968, when he conducted a public fast at the site.

[2] In October 2013, the site was identified as one of several to be part of a proposed new National Historical Park to commemorate the life and work of Chavez and the farm worker movement.

[4] Other sites for the proposed new park—which requires Congressional approval—include the Filipino Community Hall in Delano, California (headquarters of the Delano grape strike), Nuestra Senora Reina de la Paz (in Keene, Kern County, California), McDonnell Hall in San Jose, and the Santa Rita Center in Phoenix, Arizona.