Site information:

NW corner of Lincoln Ave and Orange Olive Rd, Orange

Nothing remains of the site, as far as I know.

33.836572,-117.846342

Plaque information:

State plaque

Plaque text:

Old Santa Ana

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.

California State Park Commission

Registered 6/20/1935