there are exactly 15 floors.
there are 15 floors to this dungeon and a sandstorm on floors 6,10 and 11
There are 10 floors.
a about 30or40
20..floors..veronica
There are 25 floors
there are 20floors in the desert region.. GEORGE
9 floors hope that helps!!! Actualy9 1/2
24
You battle Latios on 25F.
Desert Region has 20 floors. Desert Region has many keys for opening locked doors. There are sandstorms on random floors you have to be preprared for. There are no Legendary Pokemon at the end of the dungeon; you want to go for keys and to recruit Pokemon.
On mystery dungeon in northern range, there is 25 floors and that's when you meet latios.=)