Two entrances: one 8m pitch, and one 8m handline-able ramp. Both lead down to a sandy 45 degree slope, with another choked up entrance on the right hand side.
Head to Balkonhohle, but instead of descending the rope to the entrance ledge, continue up the slope until you reach a large plateau with a central valley and large flat depression. Head up the slope to the right of the large depression. 1623/277 is near the top of that slope, past numerous blind shafts.
The entrance series continues down a narrow phreatic passage (also at 45 degrees) with a loose boulder floor. This continues for about 20m until a junction with two avens (one wet, one dry) and another choked 45 degree downslope. The phreatic passage continues downwards from survey station 8, becoming a long tube ramping down at 45 degrees with numerous offshoots and small avens. It ends at a 30m pitch that descends into a large breakdown chamber. The chamber is divided in two by a boulder pile below the aven. A crawl from one chamber widens into a loose passage which then chokes. Gear tape was found here in 2017, which means a potential link through to 2011-01?
Tagged "1623/277" in 2018<br> (Replaces tag "2017-pw-01" placed in 2017)
To be confirmed ...
Description of change: