De Herder is an octagonal, thatched stage mill located in Medemblik. It's a smock mill equipped with two connected millstones. Up until 1047 the same location housed an earlier mill, which was demolished because it hadn't been functional in a long time and was not needed any more. For this reason, the materials could not be used any longer when reconstruction took place. Nonetheless, the mill was constructed with various old parts: the wooden octagon was built in Wormer in 1695 and served as an oil mill in Willeskop from 1904. In 1986, this mill body was brought to Medemblik when serious plans for rebuilding started taking shape, the large wooden beams could still be adjusted and used.
The mill processes wheat and is a state monument (based on the old parts it's comprised of).
The capstan system operates using wooden rollers.