| Plaue–Themar railway | 
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| Line number | 6694 (Plaue–Rennsteig)6708 (Rennsteig–Themar)
 | 
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| Locale | Thuringia, Germany | 
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| Route number | 566 | 
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| Line length | 62 km (39 mi) | 
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| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge | 
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| Electrification | 15 kV/16.7 Hz AC catenary | 
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| Maximum incline | 6.12% | 
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 |  |  |   
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 | 0.00 | Plaue (Thür) | 331 m |   
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 |  |  |   
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 |  | Angelroda Viaduct (100 m) |   
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 | 7.35 | Martinroda | 430 m |   
|  |  | 
 |  | A 71 (Reichenbach Viaduct) |   
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 | 10.32 | Geraberg | 473 m |   
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 | 12.06 | Elgersburg | 495 m |   
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 | 15.00 | Ilmenau-Roda | 513 m |   
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 | 16.75 | Ilmenau Pörlitzer Höhe (since 1995) | 492 m |   
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 |  | Porcelain factory siding (2 km; 1973–1991) |   
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 | 19.18 | Ilmenau | 478 m |   
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 |  | to Großbreitenbach |   
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 | 20.45 | Ilmenau Bad | 485.8 m |   
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 | 23.83 | Manebach | 520.1 m |   
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 |  | Meyersgrund (until 1920) |   
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 | 28.98 | Stützerbach | 591.9 m |   
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 | 30.81 |  |   
|  |  | 
 | 32.93 | End of rack section (until 1927) |   
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 | 33.38 | Rennsteig to Frauenwald | 747.7 m |   
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 | 33.93 | Start of rack section (until 1927) |   
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 | 35.13 | End of rack section (until 1927) |   
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 | 35.27 | Schmiedefeld am Rennsteig | 681.6 m |   
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 | 35.76 | Start of rack section (until 1927) |   
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 | 36.94 | End of rack section (until 1927) |   
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 | 37.88 | Start of rack section (until 1927) |   
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 | 38.93 | End of rack section (until 1927) |   
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 | 39.00 | Thomasmühle | 551.6 m |   
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 | 42.92 | Schleusinger Neundorf | 467.2 m |   
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 | 47.25 | Hinternah | 411.5 m |   
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 |  |  |   
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 | 49.00 | Schleusingen Ost | 418.2 m |   
|  |  | 
 | 49.24 | Start of rack section (until 1927) |   
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 | 49.99 | End of rack section (until 1927) |   
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 |  | from Suhl |   
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 | 50.98 | Schleusingen | 371.6 m |   
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 | 53.08 | Rappelsdorf |   
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 | 57.26 | Zollbrück (Thür) |   
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 | 59.17 | Kloster Veßra |   
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 |  |  |   
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 | 61.97 | Themar |   
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 |  |  |  
|  |  |  |  |  |  |  |  |  
| Source: German railway atlas |  |  | 
The Plaue–Themar railway is a 62 kilometre-long, single-track, non-electrified, standard-gauge branch-line in the Thuringian Forest (Thüringer Wald) in Germany. The Stützerbach–Schleusingerneundorf section was built as the first Prussian rack railway between 1879 and 1904 and connects the Erfurt–Schweinfurt railway in the north via the towns of Plaue, Ilmenau, Schleusingen and Themar with the Eisenach–Lichtenfels railway in the south.
It is divided into three sections: the northern section from Plaue to Ilmenau is currently operated once an hour by Erfurter Bahn, the steep section in the middle from Ilmenau to Schleusingen, which originally contained stretches of rack, and the southern section from Schleusingen to Themar. There is occasional freight traffic on the southern section.