From 1533, a belief persisted that the Río Grande de la Magdalena was the trail to the South Sea, to Perú, legendary "El Dorado". Such was the target of Gonzalo Jiménez de Quesada, the Granadanian conquistador who left Santa Marta on 6 April 1536 with 800 soldiers, heading towards the interior of current Colombia. The expedition divided into two groups, one under Quesada's command to move on land, and the other commanded by Diego de Urbino would go up river in four brigantine ships to, later on, meet Quesada troops at the site named Tora de las Barrancas Bermejas. When they arrived, they heard news about Indians inhabiting the south and making large salt cakes used to trade for wild cotton and fish. Jiménez de Quesada decided to abandon the route to Peru and cross the mountain in search of salt villages. They saw crops, trails, white salt cakes and then huts where they found corn, yucca and beans. From Tora, the expedition went up the Opón River and found indigenous people wearing very finely painted cotton mantles. When they arrived in Muisca territories in the Andean Plateau, on 9 March 1537, of the expedition leaving Santa Marta, only 162 men were left.