The Aso is a 63 km river in the Marche

Marche

The population density in the region is below the national average. In 2008, it was 161.5 inhabitants per km2, compared to the national figure of 198.8. It is highest in the province of Ancona , and lowest in the province of Macerata...

 region of 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...

. For most of its course the river marks the boundary between the provinces of Ascoli Piceno

Province of Ascoli Piceno

The Province of Ascoli Piceno is a province in the Marche region of Italy. Its capital is the city of Ascoli Piceno.It has an area of 1,228 km², and a total population of 212,846 . There are 33 comuni in the province, see Comunes of the Province of Ascoli Piceno.-External links:**...

 and Fermo

Province of Fermo

The Province of Fermo is a province in the Marche, central Italy, constituted in 2004. The province came into existence in 2009. The administrative centre is the city of Fermo...

The river’s source is in the Monti Sibillini, near Foce in the Commune of Montemonaco

Montemonaco

Montemonaco is a town and comune in the Province of Ascoli Piceno in the Italian region Marche, located about 90 km south of Ancona and about 20 km northwest of Ascoli Piceno. It is located within the Parco Nazionale dei Monti Sibillini, along the valley of the Aso River, on a plateau...

, at an elevation of 950 metres. The Aso flows through the settlements of Tofe, San Giorgio all’Isola, Illice, Piane, Comunanza

Comunanza

Comunanza is a comune in the Province of Ascoli Piceno in the Italian region Marche, located about 70 km south of Ancona and about 20 km northwest of Ascoli Piceno...

, Montecchio, Madonna del Lago, Aso and Rubbianello before entering the Adriatic Sea

Adriatic Sea

The Adriatic Sea is a body of water separating the Italian Peninsula from the Balkan peninsula, and the system of the Apennine Mountains from that of the Dinaric Alps and adjacent ranges...

 at Pedaso

Pedaso

Pedaso is a comune in the Province of Fermo in the Italian region Marche, located about 60 km southeast of Ancona and about 35 km northeast of Ascoli Piceno. As of 31 December 2004, it had a population of 2,093 and an area of 3.6 km².Pedaso borders the following municipalities:...

, where it delivers a mean discharge of 2.6 cubic metres per second.

See also

• Latin names of rivers
  Latin names of rivers
  Following is a list of rivers stating the Latin and equivalent English name.¹ - Latinized spelling of a Greek name.-See also:* List of European rivers with alternative names* Latin names of Portuguese rivers* List of Roman place names in Britain...