Rancho La Brea was a 4,439-acre (17.96 km2) Mexican land grant in present-day Los Angeles County, California given in 1828 to Antonio Jose Rocha and Nemisio Dominguez by José Antonio Carrillo, the Alcalde of Los Angeles. Rancho La Brea consisted of one square league of land of what is now Wilshire's Miracle Mile, Hollywood, and parts of West Hollywood. The grant included the famous La Brea Tar Pits.
The title awarded by the Alcalde in 1828 was confirmed by José María de Echeandía, Governor of Alta California; in 1840, it was reconfirmed by Governor Juan Alvarado.
With the cession of California to the United States after the Mexican-American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored. As required by the Land Act of 1851, a claim was filed by Antonio José Rocha, José Jorge Rocha, and Josefa de la Merced de Jordan with the Public Land Commission in 1852, but was rejected in 1860. As a lawyer and surveyor, Henry Hancock worked for the Rocha family to aid them with their efforts to prove their claim to Rancho La Brea. The Rochas finally won their claim (the grant was recorded as patented to "A. J. Rocha et al." in 1873). The grant included the famous La Brea Tar Pits.