The Battle of Arroyo Grande took place on 6 December 1842 and was a major battle of the Uruguayan Civil War.
Battle At Arroyo Grande, the federal forces, or blancos, of Manuel Oribe defeated the colorados of Fructuoso Rivera, having been in conflict with them since 1838.
Aftermath Following the battle, Oribe followed up his victory over the Colorados by marching to and besieging Montevideo thus beginning the Great Siege of Montevideo.
External links Arroyo Grande: una batalla sangrienta
See also Origin of the Uruguayan Civil War