The highest peak of the Orosí volcanic complex is Volcán Cacao, which is seen in this view from the SW
Volcano Type: Stratovolcanoes
Volcano Status: Holocene?
Last Known Eruption: Unknown
Summit Elevation: 1659 m 5,443 feet
Latitude: 10.980°N 10°58’48″N
Longitude: 85.473°W 85°28’24″W
Orosí is one of a cluster of four eroded and vegetated cones in the Guanacaste Range at the NW corner of Costa Rica. Volcán Orosí itself has a conical shape as viewed from the north or west, but its flanks are heavily eroded. The complex includes Orosí, Orosilito, Volcán Pedregal, and Cacao. The highest peak of the volcanic complex is 1659-m-high Volcán Cacao, 5.5 km SE of Orosí. The summit of Cacao is cut by two large horseshoe-shaped calderas breached to the SW and east related to edifice collapse. The age of the latest activity of the Orosí complex is not known. Historical eruptions were reported from Orosí in 1844 and 1849, but even at the time of the first volcanological observations at the end of the 19th century, Orosí was overgrown with large trees, and the eruptions may actually have been from neighboring Rincón de la Vieja volcano. The latest documented volcanic activity at Orosí produced mudflows (perhaps secondary) about 3500 years ago.
Orosí Volcano
The highest peak of the Orosí volcanic complex is Volcán Cacao, which is seen in this view from the SW. The summit of Cacao, 5.5 km SE of Orosí, was breached to the SW as a result of edifice collapse. Orosí is one of a cluster of four eroded and vegetated cones in the Guanacaste Range at the NW corner of Costa Rica. Volcán Orosí itself has a conical shape as viewed from the north or west, but its flanks are heavily eroded. The age of the latest activity of the Orosí complex is not known.
Orosi Volcano
Originally posted 2010-07-06 16:05:17.
