Shell is a city located on the western edge of the Ecuadorian Amazon and in the eastern foothills of the Andes. It is located about 94 miles sout…Shell is a city located on the western edge of the Ecuadorian Amazon and in the eastern foothills of the Andes. It is located about 94 miles southeast of Quito, and roughly 4 miles west of the provincial capital, Puyo. Its name comes from the Royal Dutch Shell corporation.