Underground film

Meierij van 's-Hertogenbosch (Bailiwick of Bois le Duc) was one of the four parts of the former duchy of Brabant, the others being the areas of Leuven, Brussels and Antwerp. It got its name from the Bailiff of 's-Hertogenbosch, who ruled the area in the name of the Dukes of Brabant. Nowadays the Meierij is formed out of the eastern part of the Dutch province of North Brabant.

The capital city of North Brabant and the most important city of the Bailiwick is 's-Hertogenbosch

The Bailiwick of 's-Hertogenbosch consists mainly of the poor sandy grounds of the Peel and Kempen. Those areas, which in old times were not densely populated, consisted of enormous heaths and marshlands, interrupted by woods
In the north and east the area is surrounded by the river Maas. Nummerous little rivers rise in the high sandareas and find their way to the rivers Aa and Dommel. Both rivers come together in the marshlands around 's-Hertogenbosch where they form the river Dieze that ends up in the Maas.

The Dieze is an underground river which flows through the city and is navigable as shown on the film