Ibón
Ibón is the Aragonese term for small mountain lakes of glacial origin in the Pyrenees, generally above 2,000 m. Many of them are the source of watercourses in Aragon.
There are in total 94 ibóns of different shapes and sizes; some of them are used to feed small hydroelectric plants.
The ibóns of Anayet, Sabocos, Ip or Estanés are the most well-known.
Etymology
ibón stems with almost certainty from the basque word ibai (river), which originally designated hot springs.
Geology
As the terrain where lies the spring forms a basin, often caused by the ancient presence of a glacier, these waters form a large or small lake depending on the morphological characteristics of the area.
Mythology
There are, according to local legend, enchanted Ibóns, where live fairies, like the Plan.
See also
Middle-earth
Middle-earth is the setting of much of J. R. R. Tolkien's legendarium. The term is equivalent to the term Midgard of Norse mythology, describing the human-inhabited world, i.e. the central continent of world of Tolkien's imagined mythological past. Tolkien's most widely read works, The Hobbit and The Lord of the Rings take place entirely in Middle-earth, and Middle-earth has also become a short-hand to refer to the legendarium or its "fictional-universe".
Within his stories, Tolkien translated the name "Middle-earth" as Endor (or sometimes Endórë) and Ennor in the Elvish languages Quenya and Sindarin respectively, sometimes referring only to the continent that the stories take place on, with another southern continent called the Dark Land.
Middle-earth is the central continent of Earth (Arda) in an imaginary period of the Earth's past (Tolkien placed the end of the Third Age at about 6,000 years before his own time), in the sense of a "secondary or sub-creational reality". Its general position is reminiscent of Europe, with the environs of the Shire intended to be reminiscent of England (more specifically, the West Midlands, with Hobbiton set at the same latitude as Oxford).
