San Luis Obispo County-The Early Years - A Pictorial History

History of Atascadero

Atascadero can trace its beginning to a Mexican land grant when in 1845 Governor Pio Pico granted Pedro Estrada almost 40,000 acres of the Asuncion Rancho, a good portion of which eventually made up part of the smaller 23,000 acre Atascadero... Learn More

Join Us in Preserving the Unique History of Atascadero

Become a member of the Atascadero Historical Society...Click here to print a membership application.

The Colony House Museum

The Society owns an original 1919 Colony Home and maintains the Hattie Prather Rose Garden. When Atascadero was founded in 1913, and home construction began two years later, the Arts and Crafts movement was a fresh new design for homes in the United... Learn More