<Li> Sangay, 5,230 m (17,159 ft) </Li> <Li> Tungurahua, 5,023 m (16,480 ft) </Li> <Ul> <Li> <P> Chimborazo near Riobamba, Ecuador </P> </Li> <Li> <P> Tungurahua, Ecuador </P> </Li> <Li> <P> Cayambe, Ecuador </P> </Li> <Li> <P> El Altar, Ecuador </P> </Li> <Li> <P> Cotopaxi, Ecuador </P> </Li> <Li> <P> Andes near Otavalo, Ecuador </P> </Li> <Li> <P> Pichincha Volcano, an active stratovolcano in the Ecuadorian Andes, photographed from the Historic Center of Quito </P> </Li> <Li> <P> Imbabura Volcano, Ecuador, an inactive stratovolcano </P> </Li> </Ul> <Li> <P> Chimborazo near Riobamba, Ecuador </P> </Li>

The altiplano region is a wide basin between two main andean mountain ranges