Where do you find dratini?

you find it in the 4th floor of mt coronet, near the water fall. you use the super rod to get it. the catch rate is 30% and it took me a long time to finally find it. i went through 3 gyarados, 1whiscash and my dratini. it's a girl and at level 20. but yours can be 17-25. hope this helped.