Volume Three of, Then, There Were Mines, investigates how water was harvested in this arid region, and examines the impact of modern-day farming on this precious resource.

• For ore washing, to steam engines, how the need for water increased a hundredfold
  How this arid, semi-desert region supported its thirsty mining industry.
• From ancient wells in dry river beds, to the massive water storage cisterns of the Basques
  Also, the curious way that La Compañia de Águilas sourced water for its boilers.
• The mule trains that trekked, laden with canteens of the precious liquid, up the mountains
  To the inevitable contamination of the wells, as thermal water was pumped into the valleys.
• The wells are contaminated, what's to be done? Aljibes, that centuries old solution, that's what
  A look at the different designs of these simple, but effective, structures for water collection.
• A closer examination of wells, and those strange, fast disappearing, norias before it's too late
  An attempt to understand how the water for El Arteal's boilers was made fit for purpose.
• MASA's monuments, the fairy-tale towers at El arteal, and the water supply for Villaricos
  How acequias were used to irrigate the land, and then, on to more modern times.
• The Americans, and the first white elephant of a failed desalination plant
  Fast forward to 2009, to the second white elephant, a second failed desalination plant.