The wooded hills surrounding Karojba, around the springs of Valigaštar and Vrućak, still abound in historical sites that have not been fully researched. Hadum - brig, Krč, Liretov brig, Glogovac, Šublenta... all these hills have been inhabited since prehistoric times but razed to the ground on several occasions making it difficult for the historians to put the fragments together into a unique story. The majority of them, however, agree that, at Roman times, the area around the spring of Valigaštar contained a Roman military camp near which Roman roads crossed – the modern-day name of Karojba probably derives from the Roman name Quadrivium  – a crossroads.