Rancho San Leandro
Rancho San Leandro was a 6,830-acre (27.6 km2) Mexican land grant in present-day Alameda County, California, given in 1842 by Governor Juan Alvarado to José Joaquín Estudillo. The grant extended along the east San Francisco Bay from San Leandro Creek south to San Lorenzo Creek, and encompassed present-day San Leandro.