UIS Commission on Karst Hydrogeology and Speleogenesis
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Original article
Buchegger, G.; Wimmer, G.
Die verbindung von oberer brandgrabenhöhle und hirlatzhöhle
Connection of Obere Brandgrabenhöhle and Hirlatzhöhle
2012
63
-3
86
90
Since the exploration of the Nordsiphon in Hirlatzhöhle (1546/7) in 1963 a link to Obere Brandgrabenhöhle (1546/6) has been assumed. In order to find this link there have been numerous dives in both caves with hitherto greater successes in Hirlatzhöhle. On December 27th 2011, i.e. exactly the 48th anniversary of the exploration of the Nordsiphon, Gerhard Wimmer succeeded in covering the distance mainly under water starting from Brandgrabenhöhle. This adds to a present total length of Hirlatzhöhle of 100.418 m.
Buchegger, G.; Wimmer, G., 2012, Die verbindung von oberer brandgrabenhöhle und hirlatzhöhle , Die Hoehle , 63 , 86 - 90