The watermill is not such a frequent motive in Dutch painting as windmill. However, the main mill in this picture is water. In all details, Reisdal portrays a dam, the mill foundation that had been folded for centuries, the roof, which it was time to patch up.
The second windmill is visible in the distance, in the background, and it is not so easy to notice right away.
Related Paintings 
Wake Mill by Jacob van Ruisdal 
Seashore by Jacob van Reisdal 
View of Haarlem by Jacob van Ruysdal 
Landscape with castle ruins and church by Jacob van Reisdal 
Two watermills by Jacob van Ruisdal 
Deux moulins – Jacob van Reisdal 
Landscape with wooded hills and stream by Jacob van Ruisdael 
Waterfalls by Jacob van Ruisdal
Wake Mill by Jacob van Ruisdal Seashore by Jacob van Reisdal View of Haarlem by Jacob van Ruysdal Landscape with castle ruins and church by Jacob van Reisdal Two watermills by Jacob van Ruisdal Deux moulins – Jacob van Reisdal Landscape with wooded hills and stream by Jacob van Ruisdael Waterfalls by Jacob van Ruisdal