I would strongly recommend returning to [Soldier's peak] later in the game, because there are going to be several surprises waiting for you. Notice that two characters can be found outside the fortress. You already know Levi (DLC1, 8) and you can trade goods with him (he's selling excellent runes, as well as recipes and plans).
The second interactive person is Mikhael Dryden (DLC1, 9). You can also purchase goods from him, including excellent armor pieces. In addition to that you can show him a meteorite found during your journeys (random encounter showing an elderly couple and a crater) and in return he would craft a unique item called Starfang (great sword or longsword).
The last thing you should find out about is probably the most important one, because you'll be rewarded with a party chest. It can be found to the right of Levi (DLC1, 8) and you can use the chest to store items. I would recommend placing two types of objects in it - gifts and weapons or armors which you can't use at the moment.