The Persian Gulf is a shallow marginal sea of the Indian Ocean located in the Middle East, lying between Iran to the northeast and the Arabian Peninsula to the southwest. It covers about 93,000 square miles (241,000 square km) and extends roughly 615 miles (990 km) from northwest to southeast, with a width ranging from about 210 miles (340 km) to 35 miles (55 km) at the Strait of Hormuz, where it opens to the Gulf of Oman and the Arabian Sea.
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