False 1623-173 Plateau Schacht 90/3 1623 1d 1/S + 173 90/3 1623-173 Recorded CUCC 1990 Lies along fracture line from 172 with several shafts connected by a narrow rift. Most of these are snow plugged - 173 also has a plug but this has shrunk and a large gap is visible around the edges. Fracture trends 024°, shaft is c20m deep and 7m diameter. C20m 1623/173.htm