Serra Cross on Presidio Hill commemorating the 1769 founding

A commemorative cross known as the Serra Cross stands on Presidio Hill (Presidio Park) marking the area where Father Junípero Serra and the Portolá expedition erected a cross during the 1769 founding of Mission San Diego de Alcalá. The cross has been replaced and restored multiple times over the 20th century and is interpreted by the Junípero Serra Museum and Presidio Park as part of San Diego's mission-era heritage. The site and its interpretive signage are part of the documented landscape of the early mission and presidio period. Visitors can access the cross and related exhibits at Presidio Park.