Shannon Switzer is a water conservationist, photojournalist, and National Geographic Young Explorers grantee. In 2011, she walked the length of the San Dieguito River, from its headwaters in the mountains right down to the ocean.

Illustration by Ben Swanson
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Walking the Watershed
Walking the Watershed Article

Best For
4 - 12 and up

Earth science, Biology, Experiential Learning

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  • Educators
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Explorer Shannon Switzer treks one of San Diego’s longest rivers, starting in the mountains and ending in the ocean, and documents the pollutants affecting its health.