It took Alros almost a week to explore the inner part, and on occasion, the outer part as well. During the week, he divided them into sections depending on the habitats that make the most out of each section.
For the outer part, it merely encompasses from the border until nearly half a mile into the depth of the forest. While it may seem small, in comparison to the entire forest, it is still a large distance, especially with the trees making it harder to navigate through it.
As for the outer part, Alros did not split them into sections based on habitats, as it is mostly the same. Instead, he divide them by the nearest entrance point. While anyone could enter from any part of the border, there is several checkpoint with outposts made out of stones and bricks to make it easy to resupply and rest in case the Betrum Nation launched an expedition.