Imón: Saltworks, History and Geology

Imón brings together a striking testament to salt production and a geologically significant dolomite formation. The saltworks are at the entrance to the village; the “Dolomías tableadas de Imón” stretch along Llano de las Simas hill, northwest of the village center. The parish church is another point of interest, with a history of construction also linked to salt production. If you are looking for a hotel in Imón, these places may help you decide whether to focus your stay on industrial history, geology, or architecture.

The Saltworks of Imón: Salt and Industrial History

The saltworks date back to the 10th century. Their present-day form took shape after a comprehensive redesign initiated around 1720 under Charles III. The origins of the site and its defining reorganization therefore belong to different historical periods.

The saltworks include nearly 1,000 evaporation ponds; many still retain their original paving and wooden beams. The central San Antonio and San José warehouses have been preserved, and traces of the last salt production can be seen inside them. The ponds, warehouses, and production traces bring together architecture, landscape, and traditional economic activity at a site of historical and ethnographic value.

Salt was produced by evaporating saturated saline groundwater from the Lower Triassic facies. The saltworks remained in operation until 1996. Their geological setting, built form, and production history reveal different aspects of this industrial heritage.

Location and Getting Around

Access to the saltworks site is free; however, check local access conditions before your visit. The saltworks and the main salt flats can be reached by car via the CM-110 between Sigüenza and Atienza. There are parking areas and scenic walking routes along the road. From Guadalajara, drive along the A-2 towards Zaragoza, then take the CM-1101 exit towards Sigüenza and continue on the CM-110 to Imón.

Parish Church and Dolomite Formation

The present-day parish church also reflects the importance of the saltworks to the village. It was created by enlarging a medieval church in the 18th century; the expansion became necessary because of the large number of people employed at the saltworks. Ornate altarpieces and a distinctive tower are among its architectural features.

The “Dolomías tableadas de Imón” are a geologically significant carbonate lithostratigraphic unit along Llano de las Simas hill, northwest of the village center. They consist of well-bedded crystalline dolomites. While the saltworks foreground buildings and salt production, this formation draws attention to rock type and bedding. Access is via a moderately difficult walking route that takes 0.2 hours; check trail conditions and signage locally.

A Cycling Route with Views of the Saltworks

The “Palazuelos y Salinas” BTT route passes through the Saladares del Río Salado towards Imón and recommends a detour to the saltworks to enjoy the views. This offers a different focus from the walk to the dolomite formation: here, the views of the saltworks take center stage, while the other route highlights the geological unit at Llano de las Simas. This gives you two distinct themes to consider when planning your trip, without combining them into a single route.

Discover more destinations: Alcuneza.

Go to the main travel overview: Sigüenza.