Langelsheim–Altenau (Oberharz) railway

Langelsheim–Altenau (Oberharz) railway
Overview
Native nameInnerstetalbahn
Line number1931
LocaleLower Saxony, Germany
Service
Route number204b
Technical
Line length33.4 km (20.8 mi)
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Route map

0.0
Langelsheim
208 m
0.5
0.9
Chemetall siding
New course from 1963
Bundesstraße 82
Concrete works siding
Chemetall siding
End of the route since 1963
5.4
Lindthal
265 m
Innerste Dam
6.9
Innerste
10.2
Innerste
10.6
Innerste
10.7
Lautenthal
305 m
11.8
Innerste
16.8
Innerste
17.1
Wildemann Tunnel
(278 m)
17.3
Innerste
17.7
Wildemann
408 m
18.3
Innerste
18.7
Innerste
18.9
Innerste
20.0
Silbernaal-Grund
20.5
Innerste
Bundesstraße 242
Bundesstraße 242 and Zellbach
22.1
Frankenscharrnhütte
483 m
Zellbach and Bundesstraße 242
from Ottiliaeschacht
25.0
Clausthal-Zellerfeld
536 m
26.5
Clausthal Ost
564 m
1. viaduct
2. viaduct
32,4
3. viaduct
33,7
Altenau (Oberharz)
478 m
Source: German railway atlas

The Langelsheim–Altenau (Oberharz) railway (also known in German as the Innerstetalbahn—"Innerste Valley Railway") was a railway line, that ran through the Upper Harz in Central Germany. It was also called the Upper Harz Railway or Harz Railway. It was built in order to enable the Magdeburg-Halberstadt Railway Company (Magdeburg-Halberstädter Eisenbahngesellschaft or MHE) to access the mines in the Harz mountains.