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A view inside the 7.87 km Somport Tunnel - a gate prevents unauthorised access. The tunnel is used as the Canfranc Underground Laboratory, studying "dark matter", and a Laboratory vehicle drove out as we were looking around.
- Created on
- Tuesday 9 November 2021
- Posted on
- Wednesday 18 January 2023
- Tags
- 1435 mm Gauge, Disused Railway, Spain, Tunnel
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- 2670
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