Surface - surveying
Tue 01 Sep 1987
Ian Millar
Ian Millar
(+ occasional assistance by Ian) Survey from 152 to 113 route ( MM - point - station 4 on previous survey)) completing loop and enabling errors to be assessed on return to UK.
Met French who said that they hve connected 88 to SWEishöhle. so they now have the highest entrance 1705 (but have found others) and the combined system now has 11 entrances !!