ENTRE RIGS, an eastern province of the Argentine Repub lic lying between 30° and 34° S. lat. and 58° and 61 ° W. longitude. It is bounded north by the province of Corrientes, east by Uru guay river which separates it from Uruguay and south and west by the Parana river which separates it from the provinces of Buenos Aires and Santa Fe. Pop. (1914) ; estimate, 656,385 or 21.7 per square mile. The chief foreign groups were from Uruguay, Russia and Italy.
The province has an area of approximately 30,240 sq.m., con sisting for the most part of an undulating, well watered and partly wooded plain with low hills bordering on the two great flanking rivers and a swampy district of limited extent in the angle between them. The great forest of Monteil occupies an extensive region in the north, estimated at nearly one-fifth the area of the province. Its soil is exceptionally fertile and the natural pasture lands are excellent for stock grazing. Its climate is mild and healthy. Entre Rios is sometimes called the "garden of Argentina" and its agri cultural development makes the reason evident. Its agricultural acreage for the year 19 2 5-26 included 1,132,200 ac. of wheat; 1,495,000 ac. of linseed; 556,000 ac. of alfalfa; 209,000 ac. of oats; 189,000 ac. of maize (Indian corn) ; 24,700 ac. of potatoes; and 15,600 ac. of peanuts. Grapes are an important crop along the Uruguay river. Entre Rios is one of the chief live stock producing provinces of the nation. Its live stock, according to the census of 1921, was as follows: cattle, 2, 714,000 ; sheep, 2, 710,000 ; horses 509,000; swine, 79,000. The manufacturing interests of the province are almost wholly dependent on agricultural and pastoral products. The chief exports are live cattle, jerked, chilled and tinned beef, beef extracts, mutton, wool, dairy products, wheat, linseed, fruits and a limited quantity of forest products. Lime and gypsum are the principal minerals. The Parana and Uruguay rivers provide exceptional facilities for the shipment of produce and a network of 1,527 m. of railway operated by the Entre Rios and the Argentine North Eastern railways, affords ample trans portation facilities to the ports and to the provinces lying to the north and to the south.
The capital and chief city of the province is Parana, a busy port on the Parana river, with a population of 36,089 in 1914 and 70,00o (estimated) in 1934. Other important centres, with their population in 1926, are Concordia (27,680), Gualeguaychu (21, 622), Concepcion de Uruguay (18,076), all important ports on the Uruguay; and Gualeguay (16,484) and Victoria (15 , 7 5 7)• Entre Rios, in its early history, suffered severely from political disorder and civil war. Comparative quiet reigned from 1842 to 1870 under the autocratic rule of Gen. J. J. Urquiza. After his assassination in 1870 these partisan conflicts were renewed for two or three years, and then the province settled down to a life of comparative peace, followed by an extraordinary development in her pastoral and agricultural industries. Educational and cul tural institutions have increased to a remarkable degree during this era of peace and prosperity.