Rancho Tujunga was a 6,661-acre (26.96 km2) Mexican land grant in the western Crescenta Valley and northeastern San Fernando Valley, in present-day Los Angeles County, California. It was granted in 1840 by Mexican governor Juan Alvarado to Francisco Lopez and Pedro Lopez. The rancho lands included the present-day Los Angeles communities of Lake View Terrace, Sunland, and Tujunga.