 The mining camps and new settlements drew many Aboriginal people away from Kakadu.No Aboriginal people are known to have worked in the mines but their exposure to alcohol and other drugs had a huge impact.Small-scale gold mining began at Imarlkba, near Barramundi Creek, and Mundogie Hill in the 1920s and at Moline (previously called Eureka and Northern Hercules mine), south of the park, in the 1930s.