Abbreviations for the areas:
FS: Northern Frankonian Benchland
FB: Frankonian block-faulted area
FW: Frankonian Forest
FG: Fichtel Mountains
OW: Northern Oberpfalz Forest
1 Total lengths of the caves
area unknown < 5 m 5 to 9 m 10 to 49 m 50 to 99 m > 100 m sum FS 1 1 0 0 0 0 2 FB 0 2 40 32 2 1 77 FW 0 0 11 7 0 1 19 FG 3 0 41 31 6 0 81 OW 0 0 0 0 0 0 0 sum 4 3 92 70 8 2 179
rock-type FS FB FW FG OW sum limestone, marble 0 1 7 7 0 15 sandstone 2 76 0 0 0 78 granite - - - 74 0 74 gneiss - - 1 0 0 1 breccia, conglomerate 0 0 8 0 0 8 diabase - - 2 0 0 2 unknown 0 0 1 0 0 1
formation FS FB FW FG OW sum triassic sandstone (Keuper) 2 76 - - - 78 triassic limestone (Muschelkalk) 0 1 - - - 1 upper carbonif. - - 0 74 0 74 lower carbonif. - - 7 0 0 7 upper devonian - - 10 0 0 10 ordovician - - 1 0 0 1 cambrian - - 0 5 0 5 proterozoic - - 0 2 0 2 unknown 0 0 1 0 0 1
FS FB FW FG OW sum karst 0 2 9 7 0 18 physical erosion 0 23 3 0 0 26 tectonic and rift caves 0 13 5 2 0 20 slope rift caves 0 3 0 0 0 3 weathering 1 9 0 1 0 11 boulder/talus caves (broad sense) 0 14 0 66 0 80 different genetic conditions 0 3 0 0 0 3 others 0 0 0 1 0 1 unknown 1 10 2 4 0 17
FS FB FW FG OW sum caves 1 51 17 79 0 148 cave ruins 0 8 1 0 0 9 rock shelters 1 16 1 2 0 20 natural bridges 0 2 0 0 0 2
FS FB FW FG OW sum flowing water (incl. stagnant water) 0 26 1 1 0 28 stagnant water (no flowing water) 1 7 2 2 0 12 without water 1 44 16 78 0 139
FS FB FW FG OW sum survey 100 100 100 95 - 98 map 100 83 95 78 - 82 description 100 96 58 65 - 78 photos 50 69 79 44 - 59 other documentations 50 29 16 0 - 15
FS FB FW FG OW sum mines, minery adits 0 4 34 24 2 64 cellar caves 35 113 14 23 0 185 wells 0 9 16 0 0 25 others 0 1 3 0 0 4 unknown 0 2 1 0 0 3 sum 35 129 68 47 2 281