The Pontine Marshes is an approximately quadrangular area of former marshland in the Lazio Region of central Italy, extending along the coast southeast of Rome about 45 km (28 mi) from just east of Anzio to Terracina, varying in distance inland between the Tyrrhenian Sea and the Volscian Mountains from 15 to 25 km. The northwestern border runs approximately from the mouth of the river Astura along the river and from its upper reaches to Cori in the Monti Lepini.
Hunting in the Pontine Marshes, oil on canvas by Horace Vernet, 1833
Lake Fogliano, a coastal lagoon in the Pontine Plain
Terracina Today, looking northward at the promontory: the former marsh to the right of it stretches over the horizon. In the lower right corner, the Volscian Mountains descend to the edge of the narrow strip on which Terracina is situated.
National Park of Circeo, on the coast of the Pontine Fields: the view is an aerial photograph. Visible in the foreground is Lago di Fogliano, one of the laghi costieri, "coastal lagoons".
Lazio or Latium is one of the 20 administrative regions of Italy. Situated in the central peninsular section of the country, it has 5,714,882 inhabitants and a GDP of more than €197 billion per year, making it the country's second most populated region and second largest regional economy after Lombardy. The capital of Lazio is Rome, which is also the capital and largest city of Italy, and completely encircles a foreign nation.
Panorama of the Aniene Valley
The Circeo National Park seen from Sabaudia beach
The Appian Way (Via Appia), a road connecting Ancient Rome to the southern parts of Italy, remains usable even today.
Panoramic view of Rome from St. Peter's Basilica (Vatican City)