Land and sea basd trade have little indicators know on land there are little lines of camels going from city to city same with sea trade you can see little trade ships plugging along between ports.
Good to know - but my question was more on if Land Based Trade produces anything close to a sustainable economy - as in MTW you only traded with your immediate neighbors and in reality it was far from that kind of Land Trading and whole Empires have risen or fallen depending on the Trade from the East or just having trade going - and not only sea based. In MTW the total trade income was divided at roughly 90% Sea Based trade income to the 10% Land base trade income (if you were lucky).