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General Roca is a city in the northeast of the Argentine province of Río Negro, northern Patagonia. It was founded on September 1, 1879, by Colonel Lorenzo Vintter, on the order of War Minister Julio A. Roca, during the Conquest of the Desert. The place of the first settlement was known by native mapuche people as Fiske Menuco, which means "deep water". It was destroyed in 1899 by a flooding of the Río Negro, and had to be rebuilt 5 kilometres (3.1 mi) northwest in higher lands.