Uh... This may or may not be the official thread for places to train. And I'm not sure.
Well anyway, I require of assistance as to where I could train my Pokémon to level 60 without going through the Elite Four.
If you're in need of places to train your Pokémon, I'd say that the best place to train Pokémon that are of level 15 and over would be that large patch of grass on that tiny island below the Safari Zone, if you've gotten that far into the game, that is.
Main purpose for this thread: post suggestions of where to train Pokémon of a specific level to this specific level. Ex, you can train Pokémon of (insert level number) to (insert higher level number) at (insert training hotspot).
In HG/SS I typically trained in Victory Road from the 30-ish range to the 50-ish. If you have access to Mt. Silver, it's an okay spot too. Cerulean Cave, not so much.