Battle of Yerbal

Battle of Yerbal
Part of the Cisplatine War
Date 25 May 1827 Location Near Pedras Altas, Rio Grande do Sul, southern Brazil Result Both sides claim victory[1]
Belligerents
Empire of Brazil	United Provinces
Commanders and leaders
Bonifácio Isás Calderón	Juan Lavalle (WIA)
Strength
400[1][2]	891[1][2]
Casualties and losses
Unknown	2 wounded

The Battle of Yerbal, also known as the Battle of Erval or Battle of Pedras Altas, was fought on 25 May 1827 between a militia force of the Imperial Brazilian Army and an Argentine cavalry detachment in the context of the Cisplatine War.