Traders may establish routes over land and sea, but sea routes require the Celestial Navigation technology. In order to establish a Trade Route you need free Trading Capacity of at least 1 that is, the number of currently active Trade Routes must be at least one less than your total Trading Capacitya Trader unit and at least 1 valid destination city. Trading routes and capacity are always displayed in the stats ribbon in the upper left part of the screen. They are an essential activity which provides multiple benefits: they boost GoldFood and Productionamong other yields, create roads when running on land, and provide increased Diplomatic Visibility with other civilizations. Back to Civilization VI Trade Routes represent the trade activities of civilizationseither between their own cities or with foreign civilizations.