According to the large map, the straight line distance from Sige Town to the Salt Mine was only forty kilometers.
If one were to spare no expense in quickly clearing a mining and transportation route, it was not an impossible task.
Importantly, the ore layer of this salt mine was quite shallow; there was no need to dig a hundred meters deep, digging around ten meters would be sufficient.
Essentially, this was an open-air salt mine, which was quite rare.
...
A salt mine had been found, but Roman had not been completely satisfied.
He was a Lord who needed a vast amount of resources to develop his territory.
Lacking capital, he felt no confidence even when going out to rob, he needed continual development, to rear a professional army.
And resources came from labor and production.
If there was no salt, other resources would be sought:
If the ore veins were poor, then hunting beasts for their pelts to accumulate initial funds would be next;