• 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?

Melange blocks at the Presidio

Mélange underlies much of Golden Gate and is a mixture of rocks created by tectonic activity in and near a subduction zone.