Maybe the first picture is taken in Comandau station, here: 45Ă°45'32.36"N/ 26Ă°16'36.39"E
There is a road coming from the hill and crossing the two rail lines. The little concrete tube that serves as a bridge might be the same one as in the following picture:
The building on the left is the former station, heavily modified in the last years. The little stream the bridge was built upon is "fueled" by a spring nearby and its water is acid and rich in sulphur. Maybe this will help your friends to remember more details.
The other pictures (except the one in Siclau incline) are harder to localize.
Have you put them in the chronological order they were made?
Regarding the last images: I see that the locomotive was replenishing its the water supply using its on-board pump to absorb water from the river. The problem is that the river is on the wrong side, considering you were coming on Bisca/Halom valley (which is here: 45Ă°46'6.72"N/ 26Ă°18'3.09"E).
There is a road coming from the hill and crossing the two rail lines. The little concrete tube that serves as a bridge might be the same one as in the following picture:
The building on the left is the former station, heavily modified in the last years. The little stream the bridge was built upon is "fueled" by a spring nearby and its water is acid and rich in sulphur. Maybe this will help your friends to remember more details.
The other pictures (except the one in Siclau incline) are harder to localize.
Have you put them in the chronological order they were made?
Regarding the last images: I see that the locomotive was replenishing its the water supply using its on-board pump to absorb water from the river. The problem is that the river is on the wrong side, considering you were coming on Bisca/Halom valley (which is here: 45Ă°46'6.72"N/ 26Ă°18'3.09"E).