Since 1958 Christmas Island has been administered by Australia and mapped as part of the external territories program. The Australian Surveying and Land Information Group (AUSLIG) currently publishes three maps of the island on the UTM projection, Australian National spheroid, WGS 1972. A 1:25,000 sheet with 10 m contours covers the whole island. A 1:10,000 scale two-color orthophotomap shows relief with 10 m contours, and covers the settlement area, while a second orthophotomap with very similar specification maps the national park area.
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