The Sile is an exception among the Italian rivers, for his sources in the middle of the plain Venetian, for the river basin and for its brevity of his course (about 95 kilometers). Born around Casacorba of Vedelago (MUNARON del Ponte), on the border between the provinces of Padua and Treviso even if it is from Alpine surrounding plains to the north (Grappa, Monte Tomba, Monfenera) that come to its waters after a long journey underground. After a few kilometers from the river source has the scope and power needed to run a mill. The mills of Sile, located along its course, but mainly between Fifth and Silea, always characterize the nature of a resurgence of the river system of water constant.
After Morgano and Santa Cristina, where you can pause to admire the altarpiece painted by Lorenzo Lotto in the early'500, you reach the fifth, where the river widens to form almost a lake (more than twenty meters deep). The important sequence of mills that characterize the country testify to the grand Industry milling Tomorrow.
From fifth down the river quickly in Treviso, where hugs the south side of the city center, welcoming waters of channels from the north through the city. Treviso left the river continues after Gobba Bridge, along the port will remain until the Fair. From Casier, a house, until Musestre, the Sile winds lazy in a continuous maze, slarghi, secondary branches, former quarries which form lakes, grassy embankment between low, thick poplar plantations, crops and villas.
Among Silea and ancient basins of Portegrandi, built in stone of Istria, where the Sile leads to the lagoon and where you diparte cutting in the direction of Jesolo and the mouth, the villas will meet many really.
The course of the river from its sources in Treviso occupies the dividing line between the ancient alluvial gravel deposits of Piave, which came from close to Biadene, and sandy-clay del Brenta, just at the limit between high and low plains. The Sile has a straight direction from west to east, with little digressions, from Treviso instead its course towards the south-east.
In the first section the river is fed almost exclusively by resurgences present at the Fifth Treviso and has an average of about 6 cubic meters per second (mc / s) that gradually increased to stabilize about 55 mc / s all ' height Casier, having received the support of almost all the tributaries of the left (also of resurgence, excluding Piavesella). Here the bottom of the river consists of gravel deposits that indicate the likely origin: perhaps the Sile was an ancient branch of the Piave coming down from the close of Copeland to the Venetian lagoon.
Resurgences are to ensure the river flow and water temperature almost constant during the year. The temperature varies from 8-9 degrees of winter months to 14-15 degrees during the summer months.
Finally, after the creation dell'Ente Park River Sile took the opportunity to have an institution that would coordinate the necessary steps to safeguard and recovery of territory, from a naturalistic and as "human space", or how environment marked by the development of the various activities undertaken by man over the centuries.