The farthest outlier of the Teutoburg Forest is not found right at the Isterberg, but rather it ends in Bad Bentheim‘s outlying centre of Gildehaus. On the way out of that centre on Gronauer Str., going towards the Netherlands, the forest's last trees come to an end. It is supposed, however, that the Teutoburg Forest once stretched all the way to the Fürstlicher Busch (Princely Bush), which lies in the farming community of Bardel.