It's Terra cave and can only be found in emerald
It's in kyogre's cave
somewhere in shoal cave somewhere in shoal cave
well i have ruby and sapphire and slugma is in that cave near the electric city
go to dewford and go in the cave the man in there has it
It's in the very first cave you see
there is no diglett cave in Pokemon ruby only in leaf green and fire red
in the granite cave
sootopolis
fire cave
in sootopolis
I don't think you can get regirock in pokemon ruby.
the island cave is on route 105.
In sootopolis's Cave of Origin
in the cave in soloputos city
lost cave
It is on dewford island.
Sootopolis City