Two significant rivers ran through the forest. To the north the Limlight flowed from the woods and then formed the northern border of Rohan. The river then merged into the larger Anduin. In the south, the Entwash spread deep into the forest arriving from Methedras, a mountainous region located near the Misty Mountains. The river then flowed through Rohan to the Anduin River. The valley of Derndingle was located to the south-west. There was a path where the Entwash passed into a region called Wellinghall with the home of Treebeard, the shepherd of the forest.