The Nuttall Encyclopedia
La Plata River
A broad estuary in South America, from 28 to 140 m. broad and 200 m. long, with Uruguay on the N. and the Argentine Republic on the S., through which the Uruguay and Paraná rivers pour into the Atlantic; it is much exposed to storms; its best harbour is at Monte Video.
Wood, James, ed. Entry for 'La Plata River'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/l/la-plata-river.html. Frederick Warne & Co Ltd. London. 1900.