Smerillo is a comune

Comune

In Italy, the comune is the basic administrative division, and may be properly approximated in casual speech by the English word township or municipality.-Importance and function:...

(municipality) in the Province of 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...

 in the Italian

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...

 region 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...

, located about 80 km south of Ancona

Ancona

Ancona is a city and a seaport in the Marche region, in central Italy, with a population of 101,909 . Ancona is the capital of the province of Ancona and of the region....

, about 35 km northwest of Ascoli Piceno

Ascoli Piceno

Ascoli Piceno is a town and comune in the Marche region of Italy, capital of the province of the same name. Its population is c. 51,400.-Geography:...

 and about 35 km west of Fermo

Fermo

Fermo is a town and comune of the Marche, Italy, in the Province of Fermo.Fermo is located on a hill, the Sabulo with a fine view, on a branch from Porto San Giorgio on the Adriatic coast railway....

, on a spur midway from the Monti Sibillini and 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...

.

It houses several remains of the medieval castle and walls. Also notable are the churches of Santa Caterina and San Ruffino.