Booroomba Rocks is considered one of the gems of Canberra. Its majestic, high Granite Cliffs can be seen from Canberra’s southern suburbs. Booroomba Rocks is home to the tallest rock climbs in the Australian Capital Territory. The area was first explored in 1966. Booroomba Rocks has views into the Blue Gum Creek area of Namadgi National Park and the Tuggeranong Valley. Be warned this walk has a steep 200-m plus climb. The platform top of the rocks is a good place for a rest break with a view. Rock climbers can often be seen scaling the 200-m high granite cliffs of Booroomba Rocks.
Granite is the most abundant rock in the in the earth’s crust. Large mineral crystals in Granite, is evidence that it formed by the crystallization of Magma or Lava as it cools very slowly below earth's surface. Granite is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals. Granite is igneous rock with large grains that are visible to the naked eye. This mineral composition usually gives granite a red, pink, grey or white colour with dark mineral grains visible throughout the rock. At the surface, granite forms the inner cores of many mountain ranges large areas of exposed Granite are known as Batholiths and Shields.
In areas where Earth's surface is covered with sedimentary rocks, granites, metamorphosed granites, or closely related rocks are usually present beneath the sedimentary cover. These deep granites are known as "Basement Rocks." When Granite is exposed on the surface it has been uplifted and the overlying sedimentary rocks were eroded. The best place to see one of these massive Granite outcrops is Booroomba Rocks in Namadgi National Park, Australian Capital Territory.
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