(Hopffeldgraben (Hopffeldklamm), Hopffeldgebiet, Obersulzbachtal, Hohe Tauern, Salzburg, Österreich)
A steep rift west of the Hopffeldboden, leading up to the Hopffeld. The minerals reported from this area, among which excellent kainosite, were found in clefts in gneisses. Traces of scheelite occur in screes, which probably originate from the Hopffeld.
Ref.:
A. Strasser: Die Minerale Salzburgs (1989)