South Wales Caving Club - Ogof Ffynnon Ddu - Surveys













Ogof Ffynnon Ddu centerline survey using Survex's Aven.

With added sump and date info.


Click on picture to download OFDCPT.3D

To get the program to run OFDCPT.3D click on the link to the left.


Info from Log file

Survey contains 15218 survey stations, joined by 15511 shots.

There are 403 loops.Survey has 110 connected components.

Total length of survey shots = 62256.80m (62255.30m adjusted)

Total plan length of survey shots = 57444.60m

Total vertical length of survey shots = 14797.25m

Vertical range = 336.01m (from chasdig at 504.00m to ofdsump6.14 at 167.99m)

North-South range = 1491.65m (from bsd6 at 216562.81m to ofdsump6.13 at 215071.16m)

East-West range = 3460.01m (from gccdd at 288076.36m to bcbad1 at 284616.35m)


The highest point in the cave was above the Columns at 458.5 m.

It is now an Aven above the high level passages in OFD3 at 477.5m.

and the lowest point is the OFD 1 sump at 184 m. Therefor the depth of the dry cave is 293.5 m.






Updated 29.11.20