Goydenman
Well-known member
Dramatic Rockfall after Flooding [NOTE WARNING BELOW]
There had been reports coming to the Black Sheep Diggers of a rockfall in Goyden pot down by the cascades. For a few years now blocks have fallen from the roof in the main chamber after each flood. But a rockfall further into the system is something new.
When the BSD team arrived at How Stean last Saturday morning they were greeted by Dan who showed them photos of foam from the floods and evidence of the rockfall. A whole slice of roof from Third Window across to the Bridge has peeled away, see photo with grey scar on the roof. It has left a lot of debris on the ledge above the main stream passage below and a huge block lying in the stream passage, see photo.
WARNING: Although the roof left by the peeled away section looks solid there may well be still something to come down. Also the debris on the ledge of the Third Window and Bridge could be knocked and fall into the main stream passage below. There still remains the repeated block falls in the main chamber with clear evidence of more to follow. Lastly the rockfall may have damaged the ‘Step in the Clouds’ rope traverse linking Third Window and the Bridge so may be unsafe.
The repeated flooding of Goyden places pressure on the roof and then the release of this pressure as it recedes is enough to loosen blocks. Interesting that after the recent flooding there is way more foam than usual, see photo.
There had been reports coming to the Black Sheep Diggers of a rockfall in Goyden pot down by the cascades. For a few years now blocks have fallen from the roof in the main chamber after each flood. But a rockfall further into the system is something new.
When the BSD team arrived at How Stean last Saturday morning they were greeted by Dan who showed them photos of foam from the floods and evidence of the rockfall. A whole slice of roof from Third Window across to the Bridge has peeled away, see photo with grey scar on the roof. It has left a lot of debris on the ledge above the main stream passage below and a huge block lying in the stream passage, see photo.
WARNING: Although the roof left by the peeled away section looks solid there may well be still something to come down. Also the debris on the ledge of the Third Window and Bridge could be knocked and fall into the main stream passage below. There still remains the repeated block falls in the main chamber with clear evidence of more to follow. Lastly the rockfall may have damaged the ‘Step in the Clouds’ rope traverse linking Third Window and the Bridge so may be unsafe.
The repeated flooding of Goyden places pressure on the roof and then the release of this pressure as it recedes is enough to loosen blocks. Interesting that after the recent flooding there is way more foam than usual, see photo.
