This river is crossed by the world’s longest single-span bridge for pedestrians and cyclists near Huningue (“oo-NANG”). Many hydroelectric facilities lie along a “Grand Canal” parallel to this river near the town of Kembs (“KEHMSS”). This river, whose artificial mouth is the “New Waterway,” turned red and experienced mass fish death after a fire at the Sandoz chemical works. Human settlement of this river’s peatland delta likely caused its (*) Lek distributary (-5[1])to form. (-5[1])Distance markers along this river count kilometers from the bridge at Lake Constance. (10[1]-5[2])A “land” (10[5])named (-5[1])for this river is a major industrial (10[3])area (10[3])near (10[2])where (-5[1])the (10[1]-5[1])Ruhr (10[2])flows (10[1])into (10[2])this (10[1])river, including (-5[1])the (-5[1])cities of (10[1])Mainz (“MIGHNTS”) and Bonn. (10[2])For 10 points each, name this river that forms much of the Franco-German border (10[1])before flowing into the North Sea. (10[4])■END■ (10[4])