 Four years later, the farming was abandoned following a dramatic decline in the Native American population, after which the outpost subsisted through cattle ranching.The outpost was abandoned in 1834 with the dismantling of the California Mission network.Francisco Sánchez, Commandante of the San Francisco Presidio and eighth alcade of the City of San Francisco, was awarded a land grant by the government of Mexico that included much of what is now northwestern San Mateo County.