This chasm is the narrowest section of El Tajo at about 216 feet across. It is located between Puente Viejo (Old Bridge) and Puente Nuevo (New Bridge). The Rio Guadalevín carved this ravine through the limestone during millenniums. Within the ridges on the left is the Water Mine at the base of La Casa del Rey Moro. Its natural camouflage from attackers made this a strategic location for defense near the water level and from the cliffs above.