Green book (Poll Ardua 1957) Survey of Stream Passage of Poll Ardua from Stubbing's Sewer downstream Instruments used:- Handbearing prismatic compass to 1degree Wire reinforced liner tape to ¼ft July 21st 1957 G.W, D.G.M, P.A.T Page 1 Station Distance Bearing Height Width Remarks ;NB the height and width were missed out by the typist 1 14 123 On rock 3 3/4' from foot of ladder 2 22.5 154 3 22.25 186 4 28.5 192 5 22 152 6 18 157 7 23 196 8 19 137 9 19 137 10 13 108 11 17 166 Page 2 12 14 236 13 33 204 White flowstone on right wall 14 25 187 15 12.25 132 16 20 165 17 18.5 168 18 16 203 19 11.5 167 20 20 81 21 18 148 22 21 162 23 17 168 24 18 62 25 11 109 26 10 167 27 23.75 188 Page 3 28 16.5 139 29 40 154 30 28 131 Small inlet aren on left with white flow stone 31 19 102 32 21 152 Chock-stones wedged in rift at height 5'+. 33 16 137 34 12 165 35 39.5 90 36 7.5 92 37 19 142 38 20.5 135 39 21.5 224 40 21 172 Chock-stones at 9' 41 14 145 42 32 169 Stream running beneath boulders 43 18.25 182 44 15 149 Page 4 45 20.5 198 46 17.75 164 Chockstones! 47 15 120 48 23 151 49 24 165 50 26 174 +25 degrees. Climb up over calcited boulders above streamway 51 52 16 175 10 12.75 vertical drop into stream 53 14 153 4' climb over boulders 54 11.5 193 climb down to stream 55 15 228 Small inlet flowing over stalactite on left 56 11.5 200 57 9 206 58 16 240 White stalactite on walls 59 16.5 215 60 21.5 183 61 15.25 159 Page 5 62 12 108 Climb over boulders 63 21 146 Soft white calcite on walls 64 21 169 65 13 186 66 24 150 67 13 159 68 14 214 Passage length 48 2/3 yds. Page 6 July 22nd G.W, D.G.M, P.A.T Poll Ardua survey from Maypole Corner in Main Junction upstream Station Distance Bearing Height Width Remarks ;NB the height and width were missed out by the typist 1 22 031 2 22 051 3 17 346 4 12.5 307 5 12 014 6 18.5 036 7 21 095 8 9.5 035 9 6.25 003 10 11.5 042 11 7.5 080 12 30 078 13 20.25 048 14 is foot of ladder of dry pitch Page 7 Survey from foot of ladder to waterfall in Main junction 14-A 14.5 351 A 12 331 B 16 067 To foot of Poll Ardua Waterfall POLLARDUA 14 - - - 22.5' pitch 15 10.5 106 5' vertically above pitch 16 15.75 017 17i 15.25 079 -17ii Survey of muddy tributary (dry) 17ii : D 15 167 D 14 226 E 9.75 180 Floor here about 5' above 17 F 12 248 G 12 210 Roof anastmosis prominent H 13 259 I 15.25 177 J 6.5 194 K 13 237 PAGE 8 L 28 187 Passage continues along bearing 200. Has been followed for a further 160' 17ii-18 26 020 18 20 338 Water disappears into small hole on left down 20' waterfall NB 20' is cicled and ? in pencil 19 21.5 038 20 20 103 21 9.75 108 Start traversing over deep water 22 25.5 014 23 13 355 24 15.25 072 Small tributary over flowstone down left wall 25 25 152 26 17.5 051 27 15 026 28 20 106 29 25 060 30 24 020 31 20 112 32 27 011 Drip running down flowstone on right 33 20 349 34 22 060 Duck under rock at 4' high Page 9 35 15.5 041 36 18 059 37 17.5 005 38 20 070 39 16.25 036 40 10.5 070 Series of small cascades - total drop 18'' 41 13.75 256 ;Nb this bearing has [056]? written in pecil 42 19 016 Fine white aven c. 25' 43 32 081 44 36 348 45 15 035 46 39 072 Connects witt .69 of yesterday Page 10 1 - - Bottom of pitch 10 32/4' high 2 5.5 339 Top of pitch 3 6 223 4 6.5 285 5 8.5 177 6 8.25 260 7 15.25 338 8 15 344 9 8.25 246 10 5.5 008 11 6.25 314 12 6 070 13 14 347 14 7.5 250 15 11.25 350 16 5 023 17 7.5 294 Finished on chockstone on P.A. side of waiting chamber