Doña Juana, Stratovolcano in Nariño, Colombia.

Doña Juana is a stratovolcano in the Doña Juana-Cascabel Volcanic Complex National Natural Park, Nariño, Colombia. It culminates at 4,159 m in the Central Ranges of the Andes. Its summit consists of numerous peaks, and from there the Laguna del Silencio, one of the park's 42 lakes, can be seen. The mountain rises as a broad, dark mass with a slightly uneven summit line, its upper slopes smooth blue-grey and its lower flanks deeply creased and green.

Doña Juana's largest known historical eruption occurred on 13 November 1899. Its last eruption, in 1906, killed more than 100 people and destroyed many houses. In prehistory it erupted in the 23rd century BC in a caldera-forming eruption of unknown magnitude. With a VEI of 4, it is rated as a large volcano of cataclysmic destructive power.

The name comes from a Chincha legend: Mama Juana, a woman from Quito, fell in love with Pedro, a commoner. When her family opposed the marriage, the couple fled and a curse turned them into volcanoes. The Chincha lived in the lands around the mountain.

The ascent begins from a slope in the so-called Valley of Orchids, the approach route named in the sources. The summit holds several peaks, and from them the Laguna del Silencio, one of 42 lakes in the national park, comes into view. Plan for high-altitude conditions on a volcano reaching 4,159 m.

The summit is made up of several peaks, and from them the Laguna del Silencio can be seen, one of 42 lakes in the national park. The volcano can be climbed from a slope in the so-called Valley of Orchids. To the northeast lie the Las Ánimas and Petacas volcanoes, between the El Tablón fault to the west and the San Jerónimo fault to the east.