www.maptek.com CASE STUDY The Great Ocean Road stretches between Geelong and Portland in south west Victoria, and is one of the most scenic drives in the world. Thousands of tourists visit the area each year. Formed over 15 million years ago, the Twelve Apostles are rock stacks created as a result of erosion of the headland. The rock is predominantly limestone and is horizontally bedded. Over the years the rock has been gently uplifted

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