Forts in Nederhorst den Berg
The Voorm lies north of Nederhorst den Berg. Fort Hinderdam (near Hinderdam 18). At a lock constructed in 1437 in the Vecht, a ramp was erected in 1629. This had a key position for the inundations of the Oude Hollandse Waterlinie. The barrage was replaced in 1673 by a bastioned fort, situated on an island in the Vecht. After the construction of the...
