Dusk Stones are typically found in specific locations depending on the game you're playing. Here are some common places to find them:
* Pokémon Ruby/Sapphire/Emerald: The Dusk Stone is found in the Hidden Grotto on Route 128.
* Pokémon Diamond/Pearl/Platinum: The Dusk Stone is found in the Grand Underground by searching for a small black rock.
* Pokémon Black/White/Black 2/White 2: The Dusk Stone is found by trading with a trainer in Floccesy Ranch.
* Pokémon X/Y/Omega Ruby/Alpha Sapphire: The Dusk Stone is found by searching in various locations, including the Hidden Grotto, the Underground, and the Friend Safari.
* Pokémon Sun/Moon/Ultra Sun/Ultra Moon: The Dusk Stone is found by searching in the Ultra Space.
* Pokémon Sword/Shield: The Dusk Stone is found by searching in the Lake of Outrage.
Remember to check your in-game guide or online resources for the specific location of the Dusk Stone in the game you're playing.