its in migginiggins garage outside portrush
at olivine city
in golden rod city
you will find it in a house somewhere
It is in golden rod city
In the golden rod tunnel
explore a bridge in kanto
near lavender town's route
you get the good rod from somebody, and on route 12 there is a house, walk in there and speak to the guy, he will give you a super rod :).
the fishing guru gives it to you in olivine city
in golden rod city!
if I remember right its in a house in Olivine City
Fishing in Vermillion with a Super Rod.