So the Mayans had trains???
Perhaps the title should have said terrain instead?
https://en.wikipedia.org/wiki/Tren_Maya
The Tren Maya (sometimes also Mayan Train or Maya Train) is a 1,554-kilometre (966 mi) intercity railway in Mexico that traverses the Yucatán Peninsula.
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The project aims to connect tourist destinations in the Caribbean with lesser-known sites inland, including historic Mayan sites from which it derives its name.
There’s construction of a train line going on, right across a former Mayan area, and they keep finding stuff.