In pokemon crystal how do you get to pewter city?

You can't get to Pewter City directly in Pokemon Crystal. Here's why and how you can reach it:

* Pewter City is in the Kanto Region: Pokemon Crystal takes place in the Johto region. To reach Kanto, you need to complete the Johto storyline and obtain the National Pokedex.

* How to get to Kanto:

1. Beat the Elite Four: Defeat the Elite Four in the Indigo Plateau (Johto).

2. Obtain the National Pokedex: Speak to Professor Oak in New Bark Town.

3. Visit the Sevii Islands: You'll be given the opportunity to travel to the Sevii Islands, located off the coast of Kanto.

4. Go to Kanto: From the Sevii Islands, you can travel to Kanto through a special portal.

Once you reach Kanto, you'll be able to visit Pewter City and the rest of the Kanto region.