See also:river of south-western France, rising in the Maladetta
See also:group of the Pyrenees, and flowing in a wide
See also:curve to the
See also:Atlantic Ocean . It is formed by two torrents, one of which has a subterranean course of 22 m., disappearing in the sink known as the Trou du Taureau (" bull's hole ") and reappearing at the Goueil de Joueou . After a course of 30 M. in
See also:Spanish territory, during which it flows through the
See also:gorge called the Vallee d'
See also:Aran, the
See also:Garonne enters France in the department of Haute Garonne through the narrow
See also:defile of the Pont du Roi, and at once becomes navigable for rafts . At Montrejeau it receives on the
See also:left the Neste, and encountering at this point the vast
See also:plateau of Lannemezan is forced to turn abruptly east, flowing in a wide curve to Toulouse . At
See also:Saint Martory it gives off the irrigation canal of that name . At this point the Garonne enters a fertile plain, and supplies the
See also:motive power to several mills . It is joined on the right by various streams fed by the snows of the Pyrenees . Such are the Salat, at whose confluence river navigation proper begins, and the Arize and the
See also:Ariege (both names signifying" river ") . From Toulouse the Garonne flows to the
See also:north-west, now skirting the
See also:northern border of the plateau of Lannemezan which here drains into it, the
See also:principal streams being the Save, the
See also:Gera and the BaIse . On its right
See also:hand the Garonne is swelled by its two chief tributaries, the warn, near
See also:Moissac, and the Lot, below
See also:Agen; farther down it is joined by the Drot (or Dropt), and on the left by the Ciron . Between Toulouse and Castets, 332 M. above
See also:Bordeaux, and the highest point to which ordinary
See also:spring-tides ascend, the river is accompanied at a distance of from a 1 to 3 M. by the so-called " lateral canal " of the Garonne, constructed in 1838—1856 . This canal is about 120 M. long, or 133 M. including its branches, one of which runs off at right angles to Montauban on the Tarn .
From Toulouse to Agen the
See also:main canal follows the right
See also:bank of the Garonne,
See also:crossing the Tarn on an aqueduct at Moissac, while another magnificent aqueduct of twenty-three
See also:arches carries it at Agen from the right to the left bank of the river . It has a fall of 420 ft. and over fifty locks, and is navigable for vessels having the maximum dimensions of 981 ft. length, 19 ft. breadth and 62 ft.
See also:draught . The carrying
See also:trade upon it is chiefly in agricultural produce and provisions,
See also:building materials,
See also:wood and
See also:industrial products . At Toulouse the canal connects with the Canal du Midi, which runs to the Mediterranean . After passing Castets the Garonne begins to widen out considerably, and from being 16o yds. broad at Agen increases to about 65o yds. at Bordeaux, its
See also:great commercial
See also:port . From here it flows with ever increasing width between two
See also:flat shores to the Bec d'Ambes (152 m.), where, after a course of 357 m., it unites with the
See also:Dordogne to
See also:form the vast estuary known as the
See also:Gironde . The triangular peninsula lying between these two great tidal
See also:rivers is called Entre-deux-mers (" between two seas ") and is famous for its wines . The drainage
See also:area of the Garonne is nearly 33,000 sq. m . Floods are of
See also:common occurrence, and descend very suddenly . The most disastrous occurred in 1875, 1856 and in 1770, when the
See also:flood level at Castets attained the record height of 421 ft. above low-
See also:water mark .
GARRET (from the O. Fr. garite, modern guerite, a w...
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