Argentine Confederation
The larger ships remained in Montevideo while the lighter vessels went up the Paraná River, where all of them ran aground more than once and had to be extricated by the revenue cutter "Harriet Lane", on loan from New York Harbor, and named after Buchanan's niece. Some stopped at Rosario, Argentina, while others steamed up to the town of Paraná. At that time the small town was capital of the Argentine Confederation, because the State of Buenos Aires had seceded. There they met Justo José de Urquiza, president of the Argentine Confederation.