Rancho Cañada de Jonive was a 10,787-acre (43.65 km2) Mexican land grant in present day Sonoma County, California given in 1845 by Governor Pío Pico to James Black.
[2][3][4] At the direction of Governor José Figueroa in 1835, Mariano Guadalupe Vallejo began construction of the Presidio of Sonoma to counter the Russian presence at Fort Ross.
In 1842, when the Russians pulled out of California, Black had already left this frontier outpost to cut timber for John Cooper on his Rancho Punta de Quentin.
Black moved back to Rancho Cañada de Jonive, where he received the two square league grant in 1845.
[6] 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.