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.
环境
A fissure-type gallery behind a low entrance; water clear at low water and milky otherwise.
环境条件
In low water the water can become very clear; otherwise it is milky.
典型范围来自已发表资料，不代表当前实际状况。
设施
Car park near the restaurants; 10-minute walk.
本页所有信息及其来源 (6)
| 信息条目 | 状态 | 来源 |
|---|---|---|
| The entrance pool is 9 m deep. | 已核实 | [1] |
| The first sump is about 110 m long with a depth of 12 m. | 已核实 | [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. | 已核实 | [1] |
| Water can become very clear in low water and is otherwise milky. | 已核实 | [1] |
| Divers are asked to keep good relations with restaurateurs, walkers and residents and not to fill cylinders on site.Fiche undated. | 已核实 | [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. | 已报告 | [1] |
已核实：来自我们直接查阅的官方或主要来源。已报告：仅来自二手来源。来源存在冲突：注释中列出两种版本。可能已过时：我们找到的最新来源已有一定年代。
由我们根据上述来源以自己的文字整理撰写。 提交更正