Not far from the castle of L'Isle are the springs of the Venoge river. As a result of melting snow or rainy days, the flow can become impressive.
The Venoge, a river immortalized in 1954 by the famous poet Jean Villars-Gilles, has its source in the upper part of the village of L'Isle. This walk begins in front of the castle and continues through the village, along the Venoge river, discovering the springs that supply it.
There are six sources for the Venoge river. The two most important ones are Le Chauderon and Le Puits. A seventh spring is located a few metres east of the Chauderon. It feeds the Venogette, a tributary of the Venoge. The space between these two rivers formed an "island", which probably gave its name to the village of L'Isle.
The main source, Le Chauderon, is located at the bottom of the village. It is a Vaucluse source. 700 m upstream is Le Puits, which is in fact an overflow of the Chauderon.
This source is only activated during heavy rains or snowmelt. For an undetermined period of time, perhaps Roman, a dam was built to direct water into canals on either side of the river, to irrigate fields or to bring water to an inhabited site.
Do not hesitate to consult the panel at the start of the walk with ideas for your next nature outings. A small guide "A l'Isle, on marche" is also available at the Tourist Offices of Morges and Bière.