Where is dig on Pokemon glazed?

There's no Pokemon game called "Glazed". Perhaps you're thinking of a Pokemon fan game called "Pokemon Glazed"?

If you are, then "Dig" is a move that can be learned by certain Pokemon in the game. It is not a location.

To find out where a particular Pokemon that learns Dig can be found in Pokemon Glazed, you'll need to consult a guide or walkthrough for that specific fan game.