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In page Kakadu National Park:

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The first mineral discoveries in the Top End were associated with the construction of the Overland Telegraph line between 1870 and 1872, in the Pine Creek – Adelaide River area. A series of short mining booms followed. The construction of the North Australia Railway line (1889–1976) gave more permanency to the mining camps, and places such as Burrundie and Pine Creek became permanent settlements. 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. The mines employed a few local Aboriginal people.[citation needed]