The Battle of Sierra Elvira, also called the Disaster of the Vega de Granada, was a battle of the Spanish Reconquista fought near the city of Granada on 25 June 1319 (6 Jumada al-Awwal 719 AH). The battle was fought between the troops of the Emirate of Granada and those of the Kingdom of Castile. The battle resulted in a catastrophic defeat for Castile.