is the Burggrabenklamm closed?
NO there is no longer the way!
At the Jagerwirt inn in Burgau, the Valerieweg starts orographically on the left (= right when you look from the Jagerwirt in the direction of the gorge). This narrow path is partly exposed, above the Burggrabenklamm to the Eisenaueralm or to the Schwarzensee.
The actual gorge path, which was originally carved into the rock for the wood drift, led through the lower part of the Burggrabenklamm to an 18 meter high waterfall. This path was closed for many years after an accident in 2007.
In 2015, a newly laid path through the gorge, mostly over grating, was completed. This was already badly damaged in the first winter by avalanches and rockfalls.