First, look at the index list of cave numbers. Under the 1623 heading you will see a lot of caves numbered with 2 or 3 digits, e.g. 115 Schnellzughöhle and many more labelled with a year number and some letters and numbers, e.g. 2015-DL-02 Chossy Death Slope Höhle. The former are the Austrian kataster official numbers, the latter are CUCC Expo numbers which are either for caves too insignificant to be issued an official number, or where we have not yet got around to doing the paperwork.
There is now a prohibition on painting numbers on entrances within the Naturschutzgebiet (Nature Reserve) area. You may see faded remenants of such numbers still. Since the early 1990s the @@ -181,6 +186,5 @@ bearings, with its pictures of peaks - linked with surveying document. provisional tagging of caves in accordance with current practice (those who disagree with current practice are asked not to shoot the messenger). ---> - +-->