The Cocos (Keeling) Islands group in the eastern Indian Ocean has been mapped by Australian agencies. The Australian Surveying and Land Information Group (AUSLIG) includes the islands in its mapping of external territories, with maps published on the UTM projection, Australian National spheroid, WGS 1972. A single-sheet 1:50,000 scale map published in the early 1970s, was revised in 1986. A two-sheet 1:25,000 scale six-color map was compiled by the Royal Australian Survey Corps (RSvy) and published in 1979. Both show relief with 10 m contours. An image map of the islands derived from SPOT imagery and incorporating tourist information was also recently published by AUSLIG.