Cato Island 23°15′S 155°32′E, is a small oval-shaped island lying approximately 375 km (233 mi) east of Gladstone, Queensland and about 270 km (170 mi) east-southeast of the southern end of the Great Barrier Reef. This island is approximately 115 km (71 mi) south of Bird Islet, part of the east end of Wreck Reefs. The island is a mound of coral debris and grit 5.8 m (19 ft) high, covered in grass and creepers up to 1 m (3.3 ft) high. An automatic weather station, with two radio masts and a silver-painted hut, stands on the northeast end of the island
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