Source Bleue de Cusance
The main spring of the Cusancin stream in the Val de Cusance, a popular walking spot with a 9 m deep pool and a first sump of about 110 m reaching 12 m depth.
The Source Bleue is the main source of the Cusancin, which runs the length of the Val de Cusance. A signed path of about 10 minutes leads to it from the car park near the restaurants in Cusance. Despite its name, the FFS fiche's authors report having seen mostly shades of green in more than twenty visits.
The entrance pool is 9 m deep. A low bedding-plane passage leads into a fissure gallery that runs for about 110 m, after which dry passage has been explored for several hundred metres. Jochen Hasenmayer passed the first sump in 1969, and later divers stopped at narrow points in several further sumps.
L'environnement
A fissure-type gallery behind a low entrance; water clear at low water and milky otherwise.
Conditions
In low water the water can become very clear; otherwise it is milky.
Fourchettes indicatives issues de sources publiées, pas les conditions actuelles.
Installations
Car park near the restaurants; 10-minute walk.
Chaque information de cette page, avec sa source (6)
| Information | Statut | Source |
|---|---|---|
| The entrance pool is 9 m deep. | Vérifié | [1] |
| The first sump is about 110 m long with a depth of 12 m. | Vérifié | [1] |
| Jochen Hasenmayer passed sump 1 (140 m) in 1969 and stopped in an air bell on sump 2.The fiche gives both 140 m (history) and 110 m (description) for sump 1. | Vérifié | [1] |
| Water can become very clear in low water and is otherwise milky. | Vérifié | [1] |
| Divers are asked to keep good relations with restaurateurs, walkers and residents and not to fill cylinders on site.Fiche undated. | Vérifié | [1] |
| The sources consulted publish no qualification, permit or registration requirement set by a land manager or access body for this site.Absence of a published rule, not confirmation that none exists. | Signalé | [1] |
Vérifié : indiqué par une source officielle ou primaire que nous avons consultée. Signalé : issu d'une source secondaire uniquement. Sources contradictoires : la note présente les deux versions. Peut être obsolète : la source la plus récente que nous avons trouvée est ancienne.
Rédigé dans nos propres mots à partir des sources ci-dessus. Signaler une correction