• View of the Golden Gate Bridge, taken from the Marin Headlands, looking across the bay back towards San Francisco, seen in the distance.

    Golden Gate

    National Recreation Area California

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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?

Beach at Crissy Field

One of the oldest tidal gauges in the country at Crissy Field shows 8 inches of sea level rise over the past 100 years (a rate 2 to 10 times higher than the previous 5000 years). We could see 2 to 3 more rise in the next 100 years.