Rancho Topanga Malibu Sequit was a 13,316-acre (53.89 km2) Spanish land grant in the Santa Monica Mountains and adjacent coast, within present day Los Angeles County, California.
[1] The present day communities of Malibu and western Topanga are located on parts of the former rancho.
In 1800, José Bartolomé Tapia applied, as a reward for his own Army service, for a grant of the land he saw as a youth.
With the cession of California to the United States following the Mexican–American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored.
[6] Eleven years after Keller's death, the rancho was sold to Boston and Los Angeles businessman and philanthropist Frederick Hastings Rindge in 1891.