Question: The Crocs River is a tributary of a river given what nickname?
Related documents: [0]  [DOC] The Crocs River (French: Rivière des Crocs) is a tributary of the Saint John River (Bay of Fundy), in Quebec and New Brunswick, in Canada. The Crocs River flows in the southern part of the Gaspé Peninsula, across the following areas: [END] 
[1]  [DOC] The Saint John River (French: "Fleuve Saint-Jean" ; Maliseet: "Wolastoq"( )) is a river, approximately 418 mi long, located principally in the Canadian province of New Brunswick, but also in and arising from the province of Quebec and the U.S. state of Maine. It forms part of the Canada–United States border in two different places along its length. The river drains an area of approximately 55000 km2 , of which slightly more than half is located in New Brunswick. Along that portion of the Atlantic shoreline of North America that lies between the St. Lawrence River and the Mississippi River, the Saint John River is the second longest waterway; only the Susquehanna is longer. It has been nicknamed the "Rhine of North America" for its scenery. The river is regulated by hydro power dams located at Mactaquac, Beechwood, and Grand Falls, New Brunswick. [END] 
Answer: 
"Rhine of North America"
"Rhine of North America"