Glass House Mountains

Glass House Mountains National Park is a national park in Queensland (Australia), 70 km (43 mi) north of Brisbane. It consists of a flat plain punctuated by rhyolite and trachyte volcanic plugs, the cores of extinct volcanoes that formed 27 million to 26 million years ago. The mountains would once have had pyroclastic exteriors, but these have eroded away.
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The park was established in 1994. On the 23 June 2010 the Queensland Government announced the expansion of the park to include an additional 2,117 hectares.
The Glass House Mountains were named by Captain James Cook as he sailed north up the coast of what is now Queensland in 1770 as part of his epic voyage aboard his ship HM Bark Endeavour. They were so called as the shape of the mountains reminded him of the huge glass furnaces (glasshouses) back in his native Yorkshire.

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 Glass House Mountains

Mount Beerwah is the highest peak within the park at 555 m (1,821 ft). Mount Coonowrin 377 m (1,237 ft)is the second highest and Mount Tibrogargan at 364 m (1,194 ft) is the third highest. Walking tracks normally allow access to the summits of Mount Beerwah, Mount Tibrogargan (although Mount Beerwah summit track is closed as of April 2009) and Mount Ngungun, however climbing Mount Coonowrin is prohibited due to the danger of rock falls.

Source: wikipedia