BackgroundThe forested Los Perdidos volcano lies at the southern end of a NNW-SSE-trending volcanic chain that includes the Arenal-Chato complex across the Río Fortuna. Volcanism began during the late Pleistocene at Los Perdidos and migrated northward to the historically active Arenal volcano. Several andesitic lava domes were constructed within and on the rim of a caldera, which have been have been Potassium-Argon dated by Gillot et al. (1994) at about 83,000-99,000 years before present.
Source: Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8