There are 10 floors in Mt. Thunder, and 3 floors in Mt. Thunder Peak to get to Zapdos.
They are found on the 29th floor in Lightning Field.
You can get thunder stones in Lightning Field Dungeon. They're usually on the 29th floor which is the second to last floor. The last floor is the the 30th floor which is empty after you beat Riakou.
99f
You can find it on any floor in any dungeon.
Latios is on the 25th floor.
In Mystery Dungeon Red, Blue, and DX, you go to Mt. Faraway. You’ll find him on the 60th floor.
the 99th floor
Floor 6 on the 7th dungeon
In Pokemon Sky, rayquaza is at the 50th floor at Sky Stairway
You fight Lugia at the silver trench 99f. In Pokemon mystery dungeon 2 you must bring mystery part to surronded sea 18f it will be walking around the floor.
mount horn 7th floor
i think floor 30 or 45