• View of the Golden Gate Bridge, taken from the Marin Headlands, looking towards San Francisco at sunrise.

    Golden Gate

    National Recreation Area California

Cookie Tectonics

Cookie tectonic demonstration

Ranger Roxi demonstrates Cookie Tectonics to teacher candidates.

Cookie Tectonics uses a sandwich cookie to offer a fun and easy way to model the geologic assembling of the Franciscan Complex rocks, during the subduction and accretion of the ancient Farallon Plate.

  • Download the Cookie Tectonics lesson plan in:

Did You Know?

wood-frame earthquake shacks from 1906

GGNRA owns two of these rare, wood-frame shacks, built in 1906 to shelter survivors of the famous San Francisco earthquake. Now located at the Presidio, these shacks once comprised 24 city blocks and at peak occupancy, housed a total of 16,448 refugees.