soldiers to keep the supply route open. For example, in September 1540, Melchior Díaz, along with "seventy or eighty of the weakest and least reliable men" in Vázquez de Coronado's army, remained at the town of San Hieronimo, in the valley of Corazones, or Hearts. Once the scouting and planning was done, Vázquez de Coronado led the first group of soldiers up the trail. They were horsemen and foot soldiers who were able to travel quickly, while the main bulk of the expedition would set out later. After leaving Culiacan on April 22, 1540, Vázquez de Coronado followed the coast, "bearing off to the left", as Mota Padilla says, by an extremely rough way, to the Sinaloa River. The configuration of the country made it necessary to follow the river valley until he could find a passage across the mountains to the course of the Yaqui River. He traveled alongside this stream for some distance, then crossed to the Rio Sonora, which he followed nearly to its source before a pass (now known as Montezuma Pass) was discovered. On the southern side of the Huachuca Mountains he found a stream he called the Nexpa, which may have been either the Santa Cruz or the San Pedro in modern Arizona of modern maps, most likely the northward-flowing San Pedro River. The party followed this river valley until they reached the edge of the wilderness, where, as Friar Marcos had described it to them, they found Chichilticalli. Chichilticalli is in southern Arizona in the Sulphur Springs Valley, within the bend of the Dos Cabezas and Chiricahua Mountains. This fits the chronicle of Laus Deo description, which reports that "at Chichilticalli the country changes its character again and the spiky vegetation ceases. The reason is that ... the mountain chain changes its direction at the same time that the coast does. Here they had to cross and pass the mountains in order to get into the level country." There Vázquez de Coronado met a crushing disappointment: Cíbola was nothing like the great golden city that de Niza had described. Instead, it was just a village of nondescript pueblos constructed by the Zuni. The soldiers were upset with de Niza for his mendacious imagination, so Vázquez de Coronado sent him back south to New Spain in disgrace. Despite what is shown in the accompanying map, on-the-ground research by Nugent Brasher beginning in 2005 revealed