It is the cave to get Registeel but you need to go to a secret area
Well the only cave close to fortree city is scorced slab cave it has no Pokemon it only has the TM"sunny day" so sorry dude/dudat.
go east then south of fortree city til you see a brige
Get the leg pokemon mewtwo
Make your way to lilycove. Use the map and devon scope. It should be south then east.
it is close at the fortree city it is close at the fortree city it is close to fortree city
Fortree City is a location exclusive to Pokemon Ruby, Sapphire and Emerald. This means it is impossible to visit Fortree City on Pokemon Diamond.
it is left of fortree city
Fortree City.in fortree city
Feebas is in the area south from fortree city you must use a rod to catch it.
Wrong game! Fortree city is in ruby, sapphire and emerald not leafgreen.
Fortree town is not a city or town in Platinium. Fortree town was a town on Ruby, Sapphire and Emerald.