The Ausoni Mountains are mountain range

Mountain range

A mountain range is a single, large mass consisting of a succession of mountains or narrowly spaced mountain ridges, with or without peaks, closely related in position, direction, formation, and age; a component part of a mountain system or of a mountain chain...

 of southern Lazio, in central Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

. They are part of the Antiappennini, a group running from the Apennines

Apennine mountains

The Apennines or Apennine Mountains or Greek oros but just as often used alone as a noun. The ancient Greeks and Romans typically but not always used "mountain" in the singular to mean one or a range; thus, "the Apennine mountain" refers to the entire chain and is translated "the Apennine...

 chain to the Tyrrhenian Sea

Tyrrhenian Sea

The Tyrrhenian Sea is part of the Mediterranean Sea off the western coast of Italy.-Geography:The sea is bounded by Corsica and Sardinia , Tuscany, Lazio, Campania, Basilicata and Calabria and Sicily ....

. They are bounded northwards by the Monti Lepini

Monti Lepini

The Monti Lepini are a mountain range which belongs to the Anti-Apennines of the Lazio region of central Italy, between the two provinces of Latina and Rome....

 and southwards by the Aurunci Mountains

Aurunci Mountains

The Aurunci Mountains is mountain range of southern Lazio, in central Italy. They are part of the Antiappennini, a group running from the Apennines chain to the Tyrrhenian Sea, where they form the promontory of Gaeta...

.

They take the name from the ancient tribe of the Ausoni.

The Monti Aurunci are mainly constituted by friable limestone

Limestone

Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

. Altitudes vary from hills to the 1,152 m of Cima del Nibbio and the 1141 m of Monte Calvo. Near Pastena

Pastena

Pastena is a comune in the Province of Frosinone in the Italian region Lazio, located about 90 km southeast of Rome and about 20 km southeast of Frosinone...

 are the eponymous Grotte (caves).

See also

• Apennines
  Apennine mountains
  The Apennines or Apennine Mountains or Greek oros but just as often used alone as a noun. The ancient Greeks and Romans typically but not always used "mountain" in the singular to mean one or a range; thus, "the Apennine mountain" refers to the entire chain and is translated "the Apennine...
  
  
• Antiapennines
• Geology of Italy
• Lazio