Gym Leader Dort

Dort is a rock type gym leader in Rotom city.Defeating him will get you your 1st badge TM93[Rock Blast] and you will be able to use waterfall ouside of battle[The 1st time you could use waterfall this early] If you go behind the gym you will find the hm

Pokemon

L18 Geodude

L18 Dinoterror

L22 Lileep