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Harpea's Cave (from the Basque "the place under the rock"[1]) is a cave located in Estérençuby, in the Navarre commune, a few meters from the Franco-Spanish border.
It is an example of an anticline, a convex fold of strata, the centre of which is occupied by the oldest geological layers.
References
edit- ^ Les Pyrénéens au miroir de leur toponymie: Atlas toponymique pyrénéen, Robert Aymard, 1995, Snippet view.