Indeed, the southern part of Rocklands does have the Red Valley Reclamation Area, but it has not fallen under Gaven's control yet. Even if it does, it's not the best choice because it belongs to the Komeer Kingdom. Even if it's entrusted to oneself, one still needs to pay taxes to the Kingdom, while the Goblin Margins is one's own pioneering venture, free from the tax duties to Komeer Kingdom.
The third strategic objective is the Giant Dragon Coast. This place is neither too close nor too far from the Giant Dragon Coast, but with the subsequent road reconstructions, it becomes possible to reach Posku City within two days.
