What stored would carry prom dresses

I would start the search at Macy's. You can then move on down to the other end of the mall and check out stores as you go.

NC

Macys

Plenty Stores, you could start with Macys

Camille La Vie

There are a bunch of store there that would huge mall

Camille La Vie Huge store with all sorts of prom and formal dresses. They are near the Crayola Experience.