Rancho La Sierra (Yorba)
Rancho La Sierra (also called La Sierra de Santa Ana) was a 17,769-acre (71.91 km2) Mexican land grant in present-day Riverside County, California, United States. In 1846 governor Pio Pico issued the grant to Bernardo Yorba. The grant lay between Rancho Jurupa and Rancho El Rincon, and included the present-day city of Corona.
Bernardo Yorba's father, José Antonio Yorba, was the grantee of Rancho Santiago de Santa Ana in present-day Orange County. For years Bernardo (1800–1858) and his brothers pastured animals on lands east of their father's rancho, and in 1834 Bernardo requested, and was granted, Rancho Cañón de Santa Ana. Bernardo and his brother Tomas (1787–1845) continued to pasture heards even further east, in an area they had named La Sierra.
In 1845, after his brother Tomas had died, Bernardo applied for four square leagues of the La Sierra lands. Nine days later Maria Vicenta Sepulveda, the widow of Bernardo's brother Tomas, also applied for some of the same La Sierra lands. On June 15, 1846 Governor Pio Pico granted the west half of the lands, Rancho La Sierra (Yorba), to Bernado Yorba, and the east half, Rancho La Sierra (Sepulveda), to Vicente Sepulveda.
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. As required by the Land Act of 1851, a claim for Rancho La Sierra (Yorba) was filed with the Public Land Commission in 1852, and the grant was patented to Bernardo Yorba in 1875.
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