Olaf's Gap
Running from the source of the Wandering River in the east to the mouth of the Feathered River in the west, this seemingly bottomless trench is roughly thirty feet across and serves as the official demarcation between the Nerrid Alliance and the Zennonaize Confederacy. Opened by 33 Nerrid Secret Service agents in the middle of the fifth century, including Olaf Samsonsonsonsonsonsonsonson for whom it is named (and who, according to many hard working Nerrid gets far too much credit for everything with which he was involved), many have claimed that the gap itself is mere illusionary. None have dared attempt to prove that point, however.