Altitude: 1765.7m
Location: Trisselberg cross 185½°, Summit of Vorderer Schwarzmooskogel 222½°, Prominent col to north of Trisselberg 147½°. E 36595.2, N (52)82659.7
About 100m NNE from 161c, marked with "CUCC 191 +" in paint and a metal tag "CUCC 191" added in 1997.

A 1½m diameter shaft in a limestone shelf with the sound of water. 4m 1st pitch leads to loose floor sloping to passage 3m long heading SSW. 2nd pitch in floor has water entering from above (which could simply be meltwater). 5m pitch leads to sloping boulder choke.

Exploration: CUCC 1995