Onix #0095

Where to catch Onix

Onix locations in Kanto (Red, Blue & Yellow)

Rock Tunnel — 1 location on the interactive map.

Onix locations in Johto & Kanto (Gold, Silver & Crystal)

Mt. Silver Cave, Rock Tunnel, Union Cave, Violet City — 4 locations on the interactive map.

How to evolve Onix

Onix → Steelix (Trade holding Metal Coat)