Translated by XephiZ
Edited by Aelryinth
The Lightning Pentagon Mines were located at Half-Ridge Mountain City.
Half-Ridge Mountain City was an important industrial city of the Andes Federation. It was not as dazzling and developed as Banlo City, but the whole city was like a pounding heart, pumping blood through the important arteries of the nation.
Half-Ridge Mountain City was around forty kilometers away from Banlo City, with a huge tropical river as a boundary line between them.
When the plane flew across the river, Mo Fan noticed that the river was as wide as a small strait. It was rare to see a river so wide.
Using the river as a boundary line, the areas toward Banlo City were mostly farms, woods, and green fields.
In contrast, the areas toward Half-Ridge Mountain City were mostly barren. There was not much vegetation, and some areas were as dry as the Gobi.
Remember the Chinese traditionally place heavy emphasis on clear, pale skin. Dark skin is a sign of low birth/someone who works with their hands outside, like rice farmers.
I'm also guessing that the author didn't know that the 'other side' of the Andes for much of its length is basically desert. The mountains stop the rain from coming in off the ocean!
And no, we have no idea where this city is, either.