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Dive #521 · Wednesday, 22 September 2021 · 11:37–12:46
Source de Combe Nègre
Lanzac, Lot The Quercy causses
- Day 3 of 6 · Quercy causses Sep 2021 →
- 2nd dive of the day(also #520 Gouffre Saint-Sauveur, #522 Cunhac (Ressel 2) 17:30)
- longer than 81 % of all dives
- colder than 65 % of all dives
- Profile
- Max depth
- 8.7 m
- Avg depth
- 2.8 m
- Bottom time
- 69 min
- Water
- 13 °C
Kit
- Gas
- Nitrox 32
- Mode
- Open circuit
Where
Source de Combe Nègre
An independent resurgence into the Dordogne near Souillac — narrow passages, short siphons, and two namesakes nearby that have caught out more than one map.
Dive 1 of 2 here · first 2021 · last Sept 2021
With
On the map
Combe Nègre sumps
No route marked
- Entrance
- T
- Restriction
- End of line
- Air
- Unsurveyed
- Depth
- Along the line
Profile
ZHL-16C GF · GF 50/85 · Perdix #71
- Avg depth
- 2.8 m
- Deepest at
- 15:20
- Descent
- 7.8 m/min
- fastest
- Ascent
- 6.8 m/min
- fastest
- Samples
- 477
- every 8.7 s
C53