casemates entrance

in the Casemates

The tour of the casemates offers an introduction to the Dumoulin Line, a defense line from the 17th to 19th centuries on the northwest side of the old city, with explanations of the above-ground and underground works.

Kazemats tour in Bastion Holstein

Around the year 1250, gunpowder was (re)invented in Europe. By the mid-14th century, it was already known that gunpowder could be used to seriously weaken or blow up city walls by digging mine galleries (casemates) and placing large charges of gunpowder under them. Around 1500, increasing experience with the use of gunpowder led to the introduction of firearms into the siege of cities. 

Wet and dry canals


The simplest defense was to flood the areas in front of the walls. In western Maastricht, however, the terrain was too high for the use of water as a means of defense and they had to resort to a system of dry moats.

High Fronts

This we call the "High Fronts", consisting of bastions, lunettes and "dry" moats. To prevent the digging of approach mines (casemates), by the enemy, this system was provided with mine galleries with the purpose of detecting enemy approach mines, the so-called listening tunnels.

Line of Dumoulin

Around the year 1775, the last expansion of the high front took place. About 1/3 of the high front, called Dumoulin's Line, is currently intact. 

Defense system

This tour, is led by experienced guides. After a brief introduction, you will be shown around both above ground and underground in the casemates. In the above-ground high front and get an impression how such a defense system looks like after about 250 years unchanged. In the underground part we will take you to the mine galleries, listening tunnels, communication domes and caponnieres (spaces from which the dry moats were held under fire) etc. in their relation to the above-ground defenses. 

Please fill out our request form to book your tour.
This is not a final reservation yet, but a request that we will be happy to help you with.

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