The Mnemosyne Delta is the terminus of the River Mnemosyne. Its span is comprised of a broad alluvial fan that sits amid the Northern Scrublands of Meropis, where it empties into the Notic Ocean. The delta was formed as a result of Meropis's sundering from Sapience, following the fall of Seleucar in 0 AF.
The rich waters of the delta support an ecosystem that includes scrub palms, mangroves, terns, gulls, and silt crabs.