February 26, 2012
The river rises at Mount Fumaiolo in central Italy and flows in a generally southerly direction past Perugia and Rome to meet the sea at Ostia. Popularly called flavus (“the blond”), in reference to the yellowish colour of its water, the Tiber has heavily advanced at the mouth by about 3 km since Roman times, leaving the ancient port of Ostia Antica 6 km inland. However, it does not form a proportional delta, owing to a strong north-flowing sea current close to the shore, to the steep shelving of the coast, and to slow tectonic subsidence.
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