Humphrey the Whale
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Humphrey the Whale is a humpback whale that twice deviated from his Mexico to Alaska migration by entering San Francisco Bay. This behavior is unusual for a humpback whale, and Humphrey attracted wide
Humpback whales in the open ocean
Granite monument in Rio Vista
Tail flukes have unique markings allowing identification of each individual.
Bayarea USGS
Rio Vista Bridge
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The Rio Vista Bridge is a continuous truss span with a vertical-lift bridge in the middle which carries California State Route 12 across the Sacramento River at Rio Vista, California. The present brid
The Helen Madere Memorial Bridge crosses the Sacramento River at Rio Vista, California.
The control system used in the bridge until 2024, now located in the Rio Vista Museum