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  • Castle Rock Webcam In cooperation with Humboldt State University, the National Park Service, San Francisco Bay National Wildlife Refuge, the U.S. Geological Survey, and the U.S. Coast Guard, Humboldt Bay NWR installed a webcam on the island in 2006 to provide a live feed of California's second largest nesting colony for public enjoyment and scientific inquiry.
Last Updated: Jul 22, 2013
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