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Masca Gorge
Masca Gorge (Spanish: ''Barranco de Masca'' ) is a narrow valley in the north-west of the island of Tenerife. The gorge is situated within the Teno Massif. The gorge is a popular tourist destination due to its dramatic scenery and unique geology.〔Nicholas Roe, ("Tenerife: rugged good looks" ), ''The Independent'', 2011〕 An eight-kilometre long walking trail begins at Masca village and continues for the length of the gorge〔("Barranco de Masca" ), ''Geocaching'', 2009〕 to finish at Masca beach (Spanish: ''Playa de Masca''), approximately ten kilometres from the north-west tip of Tenerife.
==Geology==
Masca Gorge is found within the Teno Massif, a Miocene-age volcanic formation composed of basaltic lava flows.〔Leonhardt and Soffel, ("The growth, collapse and quiescence of Teno volcano, Tenerife" ), ''International Journal of Earth Sciences'', 2009〕 Much of the gorge itself is formed by steeply-dipping volcanic flows. These flows are generally less than a metre thick and mostly basaltic with scoriaceous inclusions.〔Longpre et al., ("Volcanic and geochemical evolution of the Teno Massif, Tenerife, Canary Islands (1. Introduction)" ), ''American Geophysical Union'', 2009〕 The flows have subsequently been intruded by several swarms of dykes, many of which form cross-cutting relationships.
A particular formation of interest is the Masca Unconformity. The unconformity consists of a polymictite breccia that varies in both thickness and dip angle depending on location. Within Masca Gorge, the breccia may be 10 – 15 metres, thick, and dip at an angle of 30 - 60 degrees to the north.〔Longpre et al., ("Volcanic and geochemical evolution of the Teno Massif, Tenerife, Canary Islands (4.2: Description of Stratigraphic Units: Masca Unconformity)" ), ''American Geophysical Union'', 2009〕
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