NATURE · HISTORICAL MARKER

Melting Glaciers + Rising Seas =

Angel Island State Park, California
· San Francisco Bay & Angel Island
Nature
1
Over 100,000 years ago Angel Island was part of the mainland and the ocean was 26 miles to the west. As glaciers from the last ice age melted, sea levels rose and saltwater filled the ancient river valley below, creating San Francisco Bay and Angel Island. Looking across Racoon Straight you can see the Tiburon Peninsula, Belvedere Island, Richardson Bay and Mount Tamalpais State Park dominating the skyline.
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Tiburon, California · United States
Angel Island State Park, California
STATE PARK · 59 STOPSExplore Angel Island State Park, California
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