In the Bullaque River area, especially around Retuerta del Bullaque, there are several historic hydraulic flour mills, some of which still have visible remains. One of the most notable is the one located in the village of El Molinillo, from which the town is named.
In the Retuerta del Bullaque area and its surroundings (such as the village of El Molinillo), there are rural roads and trails that cross the river, some of them with small bridges or fords.