The probable existence of a substantial length of open passage beyond the downstream sumps of Notts Pot has been realised for over a decade. However, the relatively remote location of these sumps and the initial technical difficulties have kept explorers out. In fact thirteen trips to the sump and seventeen dives were required before the sump was finally passed on December 7th 1985, which is a tribute to the persistence of those involved. That support was forthcoming for the further exploration of over four kilometres of passage is less surprising, but still a mammoth effort by all concerned. 'The Nott Slog', shows just how great this effort was. We would like to extend our thanks to all those who carried gear in or out, or who helped with the radiolocation, sundry prospecting, heavy digging or surface surveying.
As well as two kilometres of open streamway, there are over twenty inlets of varying length and size, ending in avens, chokes or sumps. With a continuing downstream sump leading past as yet uninvestigated further inlets, and the roof tube in the main stream not traversed for all of its length, there is obviously considerable scope for further exploration. Perhaps most important, there is the possibility of a way in to the extension for non-divers. 'Dry' access would make rescue from the extension for the seriously injured caver a possibility for the first time. Obviously this would make scaling and digging operations much less serious than at present.
It didn't take long to realise the seriousness of prolonged trips beyond sump 1. John Frankland was consulted for advice, of which perhaps the best was "Be Bloody Careful". The remoteness of the extension led us to take in an unusually well equipped first aid kit in two tightly packed rocket tubes. This contains many items which would be needed to help stabilise an injured caver during the many hours it would take to get even a light rescue party through the sump. The rescue dump, still in place at Curry Junction, also includes food and insulation for such an emergency situation. The first 'Sump Rescue Symposium' held at Castleton in summer 1986 highlighted just how difficult it would be to evacuate an injured caver from beyond any reasonably long sump. We would strongly recommend any visitor to the extension to bear these risks in mind if attempting any climbing or digging.
For anyone working beyond a sump, it is worthwhile finding out just what equipment would be available in the event of a rescue. The divers involved took a trip to the CRO depot in Clapham to familiarise themselves with the gear and the procedures. On top of this, armed with St. John's Ambulance first aid certificates, we hope we have the bare minimum requirements for amateur body repairs.
Of much greater interest to the non-diver is the possibility of a 'dry' way in to the extension. The potential for this can be split into three possible areas.
1) Back to Notts Pot at high level
2) Direct to the surface from one of the inlets on the left
3) Into Lost Johns' via one of the inlets on the right
A dry connection towards Gavel Pot seems very unlikely at this stage.
Inlet 5 also leads towards an area of possible surface digs. Dead Dobbin Pot lies not too far away, although its general trend is parallel with the main stream, away from Inlet 5. There are a number of other shakeholes nearby, though the end of Inlet 5 is a couple of hundred metres away and considerably lower. Interestingly, the end of Inlet 5 seems to be an old downstream passage, with the sound of a stream in the distance, which appears not to be the main Notts II streamway.
The problem with all these possibilities, of course, is that the most promising lines of attack are all on the Notts II side. This will no doubt mean another season of regular carrying trips down Notts, but with less spectacular results than last season's extravaganza. The search for a dry way in will obviously be very high on the list of priorities, but the divers themselves are very keen to find the way on through sump 4. It should make interesting material for the next Pennine comic.