The Corno is a small
river of the northern
Lazio and eastern
Umbria in
Italy. Its source is on the upper slopes of
Mount Corno, at an approximate altitude of 1700 m (5575 ft), and it flows for about , almost always due north, past the towns of
Leonessa,
Ocre,
Ruscio,
Monteleone di Spoleto,
Roccaporena,
Cascia
Cascia () is a town and ''comune'' (municipality) of the Italian province of Perugia in a rather remote area of the mountainous southeastern corner of Umbria. It is about 21 km from Norcia on the road to Rieti in the Lazio (63 km). It is ...
to
Serravalle where it receives the waters of the
Sordo; from there the last 11 km in a northwesterly direction to
Triponzo, where it flows into the
Nera at 420 m (1378 ft) altitude. Of the towns mentioned, only Serravalle and Triponzo are actually on the river, since in its upper course the Corno's torrential nature is not such as to make it safe for the siting of towns.
Rivers of the Province of Rieti
Rivers of the Province of Perugia
Rivers of Italy
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