Hydrography
- The Ubaye River gives its name to the valley. The Ubaye rises on the Franco-Italian border, in Longet Lake, in the massive of Monte Viso. It runs from east to west during 70 km (43 mi), after it flows in the Serre-Ponçon Lake. Its main tributary is the Ubayette River, which rise in the Lauzanier Lake.
- Ubaye Valley has many lakes :
- Terre-Plaine lake
- Neuf-Couleur Lake
- Sagnes Lake
- Lauzanier lake
- Allos lake
- Petite Cayolle lake
- Mans lakes
- Longet lake
- Oronaye lake, near Longet lake
- Marinet Lake
Read more about this topic: Ubaye Valley, Ubaye River