survey swil1o #Data from Willie Stanton's Survey Book 1 # (=PDF p.83-84) #Typed in by Footleg, Nov. 2016 # Oct. 1st-2nd 1960 #Fred Davies #DOUBLE TROUBLE SERIES, CRYSTAL POOL PASSAGE (Glistening Gallery) centreline cs OSGB:ST date 1960.10.01 #in this survey some angles are in degrees:minutes, others decimal degrees units tape feet units depth feet data normal from to tape compass backcompass clino ignoreall 262 263 10.7 - 109:30 28:00 263 264 29.3 291:00 - -15:00 264 265 29.8 - 100:30 1:00 Sump on right 265 266 15.1 323:30 - -16:20 Huge boss on left 266 267 17.5 - 113:00 -18:00 267 268 17.2 315:30 - -15:00 268 269 7.3 333:00 - 0 Start of squeeze 269 270 25.5 - 139:00 -8:30 Near end of squeeze 270 271 25.9 327:40 - -7:00 Below beautiful chimney 271 272 40 - 134:30 -5:00 Aven on right at 22' 272 273 12.7 011:00 - -14:00 273 marked by cross above choke, 3' above bottom of choke # 273 # Glistening Gallery starts here; is approx 234' long at F.S. 290 & descending about # 12deg. Constrictions at 69' & 120' endcentreline endsurvey