The purpose of this page is to store information about mounts, both land and air, that is not spelled out in the books.
Elephant - please note that it is spelled out in the WSG that elephants cannot traverse mountainous terrain.
A full grown elephant can carry a great deal of weight, but for riding purposes, it can carry three adults in reasonable comfort. If the event of combat, only two people could fight from the back of an elephant, unless such fighting didn't involve significant movement (such as melee or dodging attacks). Having three people on the back of an elephant would cause them to have a dodge penalty if attacked.