Claydol locations — where to catch

In Hoenn (Ruby, Sapphire & Emerald)

• Sky Pillar — Walk

Other games (4)

• Sword / Shield — The Isle of Armor (Gen 8): Ballimere Lake, Giant's Bed, Giant's Foot, Max Lair, Path to the Peak, Snowslide Slope, Three-Point Pass
• Sword / Shield (Gen 8): Axew's Eye, Bridge Field, Dappled Grove, Dusty Bowl, Hammerlocke Hills, Lake of Outrage, Motostoke Riverbank, Stony Wilderness
• Omega Ruby / Alpha Sapphire (Gen 6): Sky Pillar
• Black / White (Gen 5): Relic Castle

Claydol — full Pokédex entry