I had trouble finding it too, but you find rock smash by going to the NW entrance/exit from Violet city and a guy on route 36 past the girl, gives you rock smash.
You need a Pokemon with the move Rock Smash.
Rock Smash is TM08 in Gold and Silver, is a newer move and therefore is not usable or findable in Pokemon Red, Blue or Yellow.
Nope.
have a Pokemon who knows rock climb and rock smash
a move in Pokemon to smash rocks so you can get past
A wide variety of Pokemon can use Rock Smash. Most Fighting, Rock and Ground type Pokemon can learn the move Rock Smash from the TM or HM depending on the Pokemon version.
You use HM Rock Smash on smashable rocks.
After getting rid of sudowoodo a fat guy to the right of sudowoodo gives you rock smash.
You need the move rock smash
Rock Smash-ing the Rock Smash-able rocks at the Ruins of Alph
Rock smash is a hm move, so just teach it to a Pokemon again
there is no rock smash in Pokemon Red. there are only 5 HM's in Red version. the rock smash was introduced in the Silver and Gold versions.