Also known as the Plain of Storms, the Tomb of Taranis, the Graveyard of Thunder, and other colorful names
Lightning elementals are rare, the conditions required for a bolt of lightning to become self sustaining and self aware are very unusual and uncommon. As such, artificial elementals far outnumber wild ones.
Imagine a tribe of nomads where all the males have the blessing of being were-stallions. The tribe would not need to have ordinary horses to move around, all mounted warriors would be female and a curious custom could be that when a couple gets married, the girl rides her chosen to the altar.