You can't. It is in the Seafoam Islands.
He is at the peak
red who is at the very top
on mount silver
in mount silver go up the waterfall rather than the rocks.
on mount silver
in a cave in mount silver or mortar
Catch moltres and battle red
You must beat Red, the game's version of Ash, at the top of Mount Silver.
you get moltres in mount silver i think you need waterfall strength rocksmash and rockclimb to get to him
GO to the top of mount silver and beat trainer red
Red doesn't have a gym. To find him u have to go to the top of Mount. Silver Hope this helps :)
Mount silver, or the elite four (With exp share.)