I can't give you right now the exact route, but you can look for the starting point at Baraj Poiana Rusca (Dam Poiana Rusca) or Poiana Rusca Lake, going towards Vf Tarcu (Tarcu Peak) and then carrying over somehow towards Petrosani, but can't remember exactly which village it ends this track, I'll try to find out. Of course if you ask for directions on GPS or Google Maps it will give you routes on normal tarmac roads, because these tracks are not shown on normal maps, but you can search for these points to see where they are on the map.

Vf Tarcu