Tags: Volcano.
Cerro Negro de Mayasquer is a volcano on the border of Colombia and Ecuador. It lies 3 kilometres (2 mi) north-west of the volcano Chiles and the two peaks are considered part of the same Chiles-Cerro Negro volcanic complex. A 1936 eruption reported by the Colombian government agency Ingeominas may have been from the Ecuadorean volcano Reventador otherwise the volcano has not erupted for around 160000 years.