Battle of Arroyo Grande

The Battle of Arroyo Grande (December 6, 1842) was a battle of the Uruguayan Civil War.

Parties to the conflict
At Arroyo Grande, the federal forces, or blancos, of Manuel Oribe defeated the colorados of Fructuoso Rivera, having been in conflict since 1838/1839.

Subsequent siege of Montevideo
Following the battle, Oribe then proceeded to lay siege to Montevideo.