| Openings Amalgamations Closure | Zermatt-Gornergrat | * 08-20-1898 |
| Extension Gornergrat | * 06-01-1909 | |
| Double-track Rotenboden-Riffelberg | * 12-01-1963 | |
| Double-track Riffelberg-Gifthüttli | * 12-01-1964 | |
| Double-track Riffelalp-Riffelboden | * 11-26-1978 | |
| Electrification | from the beginning | |
| Technical facts | Gauge | 1000 mm |
| Length | 9339 m | |
| Maximum gradient | 20,0 % | |
| Minimum radius | 80 m | |
| Rack system | Abt | |
| Power supply | three phase current 725 V 50 Hz | |
| Bridges | 5 | |
| Tunnel | 5 | |