Valley of Ten Thousand Smokes The ash-filled valley covers a area. The ash can be up to deep. In places deep canyons have been cut by the River Lethe, allowing observers to see the ash flow strata. Since the ash has cooled, most of the fumaroles are now extinct and despite its name the valley is no longer filled with 'smoke' (i.e. steam). Vegetation still does not grow in the valley. The signs of volcanic activity are still visible on nearby hills. Katmai's most recent eruption was in 1927, but there have been non-eruptive events as recent as 2003. The Alaska Volcano Observatory still monitors
The Metropolitan Area of the Aburrá Valley The Metropolitan Area of the Aburrá Valley The Metropolitan Area of the Aburrá Valley (Spanish: "Área Metropolitana del Valle de Aburrá") is the second most important and populated metropolitan area in Colombia. The region is made up by 10 municipalities, Medellín (Colombia) being the most important and largest the capital city of the Antioquia Department. The Metropolitan Area of the Aburrá Valley was the first metropolitan area created in Colombia, in 1980. The metropolitan area was created in order to produce economic integration, projection and planning for urban development in the cities over the Aburra Valley. The total population of