Krolva District (Anime)

The Krolva District (クロルバ区) is a town located on the west edge of Wall Rose.

Clash of the Titans arc
During the exploration to find the breach in Wall Rose in its invasion, Captain Hannes says that after spending all night looking for a hole between Krolva District and Trost District, the Garrison unit found nothing and did not run into any Titans.