De Witte Molen ("The White Mill") is a so-called polder mill near the village of Glimmen, just south of Groningen city. A polder mill pumps water from one level to another level. The mill can still be used as back-up in the Glimmen polder, which actually happens every now and then.
The White Mill was built in 1892 by P. Medendorp, in order to pump the 453 hectares of the Glimmen polder dry. In 2003 the mill was fully renovated. Nowadays the Hunze en Aa's Water Board owns the mill.
Note that if you travel to Groningen city by car coming from the south on highway A28, you can see the mill when you look to the left near the exit "Haren".
Both photos were taken yesterday, the weather was really beautiful. I'm linking to Seasons on St Germain's blog, and Tom´s Tuesday´s Treasures.