Ambato, Ecuador
Ambato lies in the main valley of the Central Cordillera, the highest of the Andean mountain ranges. The city itself is carved into the side of Cerro Casigana, the mountain that dominates the north end of the city. From Ambato, it is possible to see many snow-capped volcanoes including Cotopaxi, Tungurahua, Carihuairazo, and the largest mountain in Ecuador, Chimborazo. Tungurahua lies about 40 kilometers to the southeast. The threat of eruption from the volcano is constant. On May 16, 2006, Tungurahua erupted, covering the city with a thick layer of ash.
Guayas River
The Guayas River has one of its sources in the Andes and the Chimborazo (volcano), Ecuador's highest volcano. The coat of arms of Ecuador shows an image of the river descending from the mountain. "Guayas" is the name of the lower part of the river, which starts at the confluence of the Daule River from the west and the Babahoyo River from the east, between the cities of Guayaquil and Durán, in Guayas province. The Guayas River then flows around Santay Island, and becomes one current again. From the confluence to the delta 60 kilometers away, it borders Guayaquil (canton) and Durán cantons, and Guayaquil and Naranjal cantons, just before the delta.