In the background of the oval shield is the mountain Chimborazo, while the river originating from its base represents the Guayas. Chimborazo is also the highest mountain in Ecuador and is part of the Andes Range. The steamboat on the river is named "Guayas" as well. The ship was built in Guayaquil and was the first seaworthy steamship built in both Ecuador and in all of South America. It was first put into service on 9 October 1841. The ship has the features of a Caduceus representing trade and economy. This kind of mast has two wings surrounding a pole with two snakes encircling it. On top a golden sun surrounded by the Zodiac astrological signs for Aries, Taurus, Gemini and Cancer representing the months March to July to symbolize the duration of the March Revolution of 1845 that ousted General Juan José Flores.