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How large is the Gulf of Ob?
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Ob River
The Ob and Yenisey river basins and their drainage networks.
The Gulf of Ob is a large inlet of the Kara Sea in northwestern Siberia, Russia. It serves as the outlet for the Ob River.
Regarding its dimensions:
* Length: The gulf is approximately 500 miles (800 km) long.12
* Breadth: Its width varies between 20 and 60 miles (32 and 97 km).1
* Depth: The depth of the water in the gulf ranges from 33 to 40 feet (10 to 12 m).1