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Wikipedia: Nevado del Ruiz, also known as El Mesa de Herveo or Kumanday, is the northernmost volcano of the Andean Volcanic Belt, lying about 129 kilometers (80 mi) west of Bogotá in the Tolima Department of Colombia. It is a stratovolcano, composed of many layers of lava alternating with hardened volcanic ash and other pyroclastic rocks. Nevado del Ruiz has been active for about two million years, since the early Pleistocene or late Pliocene epoch, with three major eruptive periods.
![[Summit of Nevado del Ruiz in late November 1985]](http://images.ookaboo.com/photo/s/Nevado_del_Ruiz_summit_1985_Marso_s.jpg "Summit of Nevado del Ruiz in late November 1985")
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![[Nevado del Ruiz in 1985, before the eruption]](http://images.ookaboo.com/photo/s/Nevado_del_Ruiz_1985_s.jpg "Nevado del Ruiz in 1985, before the eruption")
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 from Avenue |
from RedWolf |
![[Nevado del Ruiz seen from Manizales, 2006]](http://images.ookaboo.com/photo/s/El_ruiz_volcano_s.jpg "Nevado del Ruiz seen from Manizales, 2006")
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![[Satellite radar image of Nevado del Ruiz, with the deep Arenas crater visible near the summit]](http://images.ookaboo.com/photo/s/Nevado_del_Ruiz_radar_image_from_space_s.jpg "Satellite radar image of Nevado del Ruiz, with the deep Arenas crater visible near the summit")
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from Foj333 |
from Avenue |
![[The volcano’s summit and upper flanks are covered by several glaciers that appear as a white mass surrounding the...]](http://images.ookaboo.com/photo/s/Nevado_del_Ruiz_Volcano_2C_Colombia_s.jpg "The volcano’s summit and upper flanks are covered by several glaciers that appear as a white mass surrounding the...")
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![[Spectacled bear]](http://images.ookaboo.com/photo/s/Spectacled_Bear_Barquisimeto_2_s.jpg "Spectacled bear")
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from Originalwana |
 from Tomfriedel |
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