Rancho Valle de San José

Rancho Valle de San José (also called "Valle de San José y Corralitos") was a 48,436-acre (196.01 km2) Mexican land grant in present-day Alameda County, California.

[2][3] The eleven square league grant was given to four children of José Joaquín Bernal (1762–1837) and María Josefa Daría Sánchez (1760–1858).

Pico sold his one fourth share of Rancho El Valle de San José to Juan Pablo Bernal.

[4] The Bernals only moved to the rancho after the gold rush to protect their interests from squatters.

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.