http://www1.universia.net/catalogaxxi/C10048PPESII1/S139658/P139651NN1/INDEX.HTML1977 LA MICHILÍA EN RESERVAS DE LA BIOSFERA - UNESCOhttp://www1.universia.net/catalogaxxi/img/cabecera/universia1.gif http://www1.universia.net/CatalogaXXI «Michilía is located 75 km to the south of the town Durango in the Sierra de Michis, a branch of the Sierra Madre Occidental. The Sierra de Michis consists of igneous rock of the tertiary period. In the reserve, the topography is marked by a high degree of relief. There are several ephemeral streams and lagoons, besides the two permanent streams, Laurel to the west and Temascal to the southeast. There are also marshy meadows in the core area.» ]]>