When the Morco logo appears in the upper right corner of all maps, it means that Morco is in the Great Desert for a limited time. 

You can find out the limited time by clicking on the Morco "logo".

The great desert is not small :) and there is very little life-giving water. 

Unless someone advises you beforehand, it will take you a long time to find Morco.

To make your search go faster…

Map of Morco - High Resolution

Actual: [2024 March 4, 18:00hr + 1day 7hr]

If you choose the route from T5 to T4, after a while the Morco "logo" will appear on the right side of the minimap.

If you are close enough, the Morco "logo" will appear on the minimap.

Good luck finding it...
JAACO