Portola camped on bank of Santa Ana River in 1769. Jose Antonio Yorba, member of expedition, later returned to Rancho Santiago de Santa Ana. El Camino Real crossed river in this vicinity. Place was designated Santa Ana by travelers, and known by that name until present town of Santa Ana was founded.

Marker is at the intersection of North Orange Olive Road and East Lincoln Avenue, on the right when traveling south on North Orange Olive Road.

Courtesy hmdb.org

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