Rio Vista (California)
| Rio Vista | |||
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 The whale delta in 2007 |
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| Location in California | |||
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| Basic data | |||
| State : | United States | ||
| State : | California | ||
| County : | Solano County | ||
| Coordinates : | 38 ° 10 ′ N , 121 ° 42 ′ W | ||
| Time zone : | Pacific ( UTC − 8 / −7 ) | ||
| Residents : | 7,876 (as of 2007) | ||
| Population density : | 450.1 inhabitants per km 2 | ||
| Area : | 18.4 km 2 (approx. 7 mi 2 ) of which 17.5 km 2 (approx. 7 mi 2 ) is land |
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| Height : | 6 m | ||
| Postal code : | 94571 | ||
| Area code : | +1 707 | ||
| FIPS : | 06-60984 | ||
| GNIS ID : | 0277585 | ||
| Website : | www.rio-vista-ca.com | ||
| Mayor : | Eddie Woodruff | ||
Rio Vista is a city in eastern Solano County in the US state of California . The city is located on the Sacramento River in the Sacramento-San Joaquin River Delta . Rio Vista has 7876 inhabitants on an area of 18.4 km². The annual Bass Festival takes place in October .
In 1985, in the Sacramento River, 100 kilometers upstream, a humpback whale called Humphrey swam . In 2007 a whale was swimming with her calf in the river called Delta and Dawn .