Nevado del Ruiz volcano, with the two canyons (labeled) that delivered the large mudflow (lahar) that destroyed the town of Armero on November 13, 1985. The town was nearly 50 km away from the volcano.
* Generator: [DEM Net Elevation API](https://elevationapi.com)
* Digital Elevation Model: [SRTM_GL3 OpenTopography](https://opentopography.org/)
* Imagery: [MapBox Streets](https://www.mapbox.com)