Battle of Yerbal

Battle of Yerbal
Part of the Cisplatine War
Date25 May 1827
Location
Result Both sides claim victory
Belligerents
 Empire of Brazil United Provinces
Commanders and leaders
Bonifácio Isás Calderón Juan Lavalle (WIA)
Strength
400 891
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.