The trading post is a little log cabin located in the mountains. There are two signs that say "Wandering Oaken's Trading Post" and "And Sauna."
As Anna journeys out in the mountains searching for Elsa, she finds the trading post and goes inside to buy some comfortable winter clothing. Inside, Kristoff enters and the two eventually meet. A seemingly hippy and calm Oaken was angered at Kristoff after he called him a "crook," and kicks Kristoff out of the store before returning to his usual self, where Anna gets the idea to have him guide her to the North Mountain in finding Elsa.