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Comune di Grosio
Grosio is located in Italy
Location of Grosio in Italy
Coordinates: 46°18′N 10°17′E / 46.300°N 10.283°E / 46.300; 10.283Coordinates: 46°18′N 10°17′E / 46.300°N 10.283°E / 46.300; 10.283
Country Italy
Region Lombardy
Province / Metropolitan city Province of Sondrio (SO)
Frazioni Tiolo, Ravoledo
 • Mayor Luca Bottinella
 • Total 127.0 km2 (49.0 sq mi)
Elevation 656 m (2,152 ft)
Population (Dec. 2004)
 • Total 4,790
 • Density 38/km2 (98/sq mi)
Demonym(s) Grosini
Time zone CET (UTC+1)
 • Summer (DST) CEST (UTC+2)
Postal code 23033
Dialing code 0342
The town of Grossio

Grosio is a comune (municipality) in the Province of Sondrio in the Italian region Lombardy, located about 130 kilometres (81 mi) northeast of Milan and about 35 kilometres (22 mi) northeast of Sondrio, on the border with Switzerland. As of 31 December 2004, it had a population of 4,790 and an area of 127.0 square kilometres (49.0 sq mi).[1]

The municipality of Grosio contains the frazioni (subdivisions, mainly villages and hamlets) Tiolo and Ravoledo.

Grosio borders the following municipalities: Grosotto, Monno, Poschiavo (Switzerland), Sondalo, Valdidentro, Valdisotto, Vezza d'Oglio.

On the hillside of Grosio lie the ruins of the S. Faustino and Visconti Venosta castles, the latter being mostly reconstructed and the former bearing only trace evidence of its former location save for a rebuilt chapel on the site. In the same location one can find petroglyphs dating from 2200 to 1000 BCE.[2]

At the center of Grosio is the 17th century church of San Giorgio. Inside, the single-nave church contains many frescoes by Cipriano Valorosa, the "Raphael of Valtellina". At the other end of town is the large parish church of San Giuseppe.

Demographic evolution[edit]

Twin towns[edit]

Grosio is twinned with:


  1. ^ All demographics and other statistics: Italian statistical institute Istat.
  2. ^ "Petroglyphs in Italian Alps Dated" (PDF). Retrieved 2007-07-10.