text: @anonym:What means "the path is practical and hard to understand"?
  The Geologensteig is visible very well and so i think it isn't hard to understand. 
  Regarding the path along Tuffbach: the lower part is visible well, too, I don't know how the upper part is.
  Even if there's no sign, the path is closed due to some rock at Lepsiusstollen that is lowering and could fall down eventually.
  
  Maybe its's indeed rather T2 than T3...
  
  @connecticut: disabled:highway=path - do you mean disused?
  I wouldn't tag it like this cause the path really looks like it is used quite often...