Rancho Rincón de las Salinas y Potrero Viejo was a 4,446-acre (17.99 km2) Mexican land grant, largely within present day southeastern San Francisco, California, and extending to San Mateo County, California .
It was given in 1839 by Governor pro tem Manuel Jimeno to José Cornelio Bernal.[1]
The grant consisted of two grants - Rincon de las Salinas ("corner of a salty marsh" - around Islais Creek); and Potrero Viejo ("old pasture" - part of Mission Dolores). Rincon de las Salinas encompassed the present day southern San Francisco neighborhoods of Bernal Heights, Excelsior, Crocker-Amazon, and Outer Mission. Potrero Viejo encompassed present day Bayview and Hunters Point.[2]