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S the train sweeps into the station at Lourdes, on the right side, a few feet above the Gave, may be seen the twinkling lights of the Grotto of Massabielle, about which presently.

From the station of Lourdes the line turns north to Tarbes and Toulouse, along what was the ancient course of the Gave, a course that is patent to the eye, till the Argelez glacier threw up a barrier of morraine that deflected the river, and sent it careering to the west.