Rio Negro

Rio Negro, 1, One of the larger tributaries of the Amazon, rises as the Guainia in SE. Columbia; crosses Venezuela and Brazil in a more or less SE. direction, and joins the Amazon (the Marañon here) near Manaos after a course of 1350 m.; some of its tributaries connect the Orinoco with the Amazon. 2, Has its source in a small lake in the Chilian Andes, flows NE. and E. to the Atlantic, is some 500 m. long, and easily navigated.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Rio Grande do Sul * Rioja
Rigveda
Rimini
Rimmon
Rinaldo
Rinderpest
Ring and the Book
Rio de Janeiro
Rio Grande
Rio Grande do Norte
Rio Grande do Sul
Rio Negro
Rioja
Riom
Rip Van Winkle
Ripley
Ripley, George
Ripon, Frederick John Robinson, Earl of
Ripon, George Frederick Samuel Robinson, Marquis of
Rishanger, William
Rishis
Ristori, Adelaide