Geography of Biscay

300px|thumb|Gaztelugatxe right|thumb|Stairway and path up the crag right|thumb|Stairway and path up the crag with drone Gaztelugatxe is an islet on the coast of the Bay of Biscay belonging to the Biscayan municipality of Bermeo, in the Basque Autonomous Community. It is connected to the mainland by a man-made bridge.

Biosphere reserve in Biscay, Basque Country, Spain

250px|thumb|right|Map of historical Uribe (red) (open for full legend)

protected area in Spain

thumb|View from Erandio. Txorierri is a valley of Biscay, Basque Country, separated from Bilbao by low mountains Monte Artxanda and Monte Abril. It includes the municipalities of Erandio, Loiu, Sondika, Derio, Zamudio, Lezama and Larrabetzu. It holds the international airport of Bilbao. It includes industrial and residential areas.