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 42 34 2 1 81 FW 0 0 11 7 0 1 19 FG 3 0 43 33 6 0 85 OW 0 0 0 0 0 0 0 sum 4 3 96 74 8 2 187
rock-type FS FB FW FG OW sum limestone, marble 0 1 7 7 0 15 sandstone 2 80 0 0 0 82 granite - - - 78 0 78 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 80 - - - 82 triassic limestone (Muschelkalk) 0 1 - - - 1 upper carbonif. - - 0 78 0 78 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 24 3 0 0 27 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 70 0 84 different genetic conditions 0 3 0 0 0 3 others 0 0 0 1 0 1 unknown 1 13 2 4 0 20
FS FB FW FG OW sum caves 1 54 17 83 0 155 cave ruins 0 8 1 0 0 9 rock shelters 1 17 1 2 0 21 natural bridges 0 2 0 0 0 2
FS FB FW FG OW sum flowing water (incl. stagnant water) 0 27 1 1 0 29 stagnant water (no flowing water) 1 7 2 2 0 12 without water 1 47 16 82 0 146
FS FB FW FG OW sum survey 100 100 100 95 - 98 map 100 80 95 74 - 79 description 100 94 58 62 - 76 photos 50 77 84 55 - 67 other documentations 50 27 16 0 - 14
FS FB FW FG OW sum mines, minery adits 0 4 39 27 7 77 cellar caves 35 141 14 23 0 213 wells 0 9 16 0 0 25 others 0 2 3 0 1 6 unknown 0 2 1 0 0 3 sum 35 158 73 50 8 324