“ After skirting the town of Morteau, below which it expands into the picturesque lake of Chaillexon and descends over the Falls of the Doubs (88 ft. in height) , the river for about 28 m. forms the frontier between France and Switzerland. Flowing into the latter country for a short distance, it turns abruptly west, then north, and finally at Voujeaucourt, south-west. Just below that town the river is joined by the canal from the Rhone to the Rhine, to accommodate which its course has been canalized as far as Dole. ”