Spencer Gulf

Spencer Gulf, inlet of the Indian Ocean, 200 mi (322 km) long and 80 mi (129 km) wide, SE South Australia state, Australia, between Eyre and Yorke peninsulas. The gulf is the major outlet for iron ore from Middleback Range. Whyalla, Port Pirie, and Port Augusta are on the gulf.

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Spencer Gulf

an inlet of the Indian Ocean in S Australia, between the Eyre and Yorke Peninsulas. Length: about 320 km (200 miles). Greatest width: about 145 km (90 miles)

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Spencer Gulf 

a gulf of the Indian Ocean, situated off southern Australia, between the peninsulas of Eyre and York. The shoreline is primarily low-lying and slightly indented. The gulf, which juts 330 km into the mainland and is approximately 80 km wide at the entrance, is up to 64 m deep. Tides are irregular and diurnal; the water level rises by 3.6 m at high tide. Port Pirie is the chief port. The gulf was named after the English minister of the navy G. J. Spencer.