provincia (province) in the comunidad autonoma (autonomous community) of Andalusia, southwestern Spain. It is bordered by the Guadiana River and Portugal to the west and by Sevilla province to the east. The province's mountainous northern portion (Sierra de Aracena) gives way in the south to the flat, fertile La Campina, or lowland, which stretches to the Atlantic. The estuaries of the Odiel and the Tinto, the main rivers of the province, join to form the ria (inlet) at the provincial capital, Huelva city.
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