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. These volcanoes, together with Cumbal are andesitic in rock type. 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 160,000 years.

• List of volcanoes in Colombia
• List of volcanoes in Ecuador
• List of volcanoes by elevation

• Parra, Eduardo; Velásquez, Marta (2003). "Plancha 447 Ipiales & 447bis Tallambí - 1:100,000" (PDF) (in Spanish). INGEOMINAS. Retrieved 2017-06-06.

• Servicio Geológico Colombiano, Dirección de Geociencias Básicas.; Monsalve-B, María Luisa; Laverde-C, Carlos Andrés; Servicio Geológico Colombiano, Dirección de Geoamenazas. (2016-06-01). "Contribución Al Registro Histórico De Actividad De Los Volcanes Chiles Y Cerro Negro (Frontera Colombo-Ecuatoriana)". Revista Boletín de Geología (in Spanish). 38 (4): 61–78. doi:10.18273/revbol.v38n4-2016004.