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Map of railways and rail gauge in Africa
(upload.wikimedia.org)
For the map enthused!
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post relevant content: interesting, informative, and/or pretty maps
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I wonder what economic opportunities would arise if there was a single-gauge link from Egypt to South Africa?
This doesn't answer your question, but Great Britain tried during their colonial rule. I'd be curious too though about a modern version.
https://en.wikipedia.org/wiki/Cape_to_Cairo_Railway