The snow-covered
Pyrenees Mountains (below), which form a formidable physical barrier between France to
the north and Spain to the south, are the main focus of this
southeast-looking photograph. Scarcely interrupted by accessible passes
and pierced in only two places by railroad tunnels, the Pyrenees are an ideal
natural boundary between the Iberian Peninsula and the rest of Europe. The
northern flank of the Pyrenees is characterized by a series of large alluvial
deposits that fan out across southwestern France. The darker, roughly triangular
area in southwest France is part of the forested Aquitaine Basin. This region is
near the major port city of Bordeaux (not visible in this photograph), which is
known for its world-famous wine production. The southern flank of the Pyrenees
(Spain) is characterized by aridity and very rugged, mountainous conditions.
Human settlement is sparse throughout the Pyrenees; however, because the region
is rich in mineral waters, there are dozens of mineral water resorts, and winter
sports attract visitors from southwestern France. The very small mountainous
country of Andorra (not distinguishable in this photograph) has survived in an
inaccessible upper valley of the Pyrenees (NASA - April 1985).


Pyrenees
Mountains
Pyrenees and Spain
(Source
U.S. Geological Survey)


Bay of Biscay

Mediterranean Sea