The Great Hornsby Treasure Hunt

This is a cache that is part of The Great Hornsby Treasure Hunt - GC9M460.
(Basic Members - You will need to look at the above Mystery cache on the Geocaching website via a web browser, not the official geocaching app.)
Mount Colah
Mount Colah is an outer suburb of Northern Sydney, in the state of New South Wales, 29 kilometres north of the Sydney central business district, in the local government area of Hornsby Shire. Mount Colah is often referred to as "Far Northern" or Upper North Shore.
Mount Colah is 5 km north of Hornsby, the nearest major town centre. It is one of the most northerly suburbs of Sydney and is where the "Welcome to Sydney" sign is located. Mount Colah is the second highest suburb in Sydney by elevation. Considered one of Sydney's leafier suburbs, streets are clustered around the Pacific Highway. Mount Colah is bordered to the east by the Ku-ring-gai Chase National Park.
Mount Colah varies in altitude from 68 m to about 206-217m above sea level.
Mount Colah was originally known as Colah - the name first used by naturalist George Caley to describe a koala in a letter to botanist Sir Joseph Banks. When Hornsby became a shire in 1906 the name was changed to Mount Colah. Colah Post Office opened on 29 September 1905 and was renamed Mount Colah in 1906.
The Pacific Motorway (Sydney–Newcastle) was built through Mount Colah in 1988 and opened in March 1989. In the process it cut through an old World War II gravel airstrip, and isolated 2 holes of the Asquith Golf Course just to the south. Some World War II building remnants are still visible nearby.
Mount Colah was voted "Australia's Best Suburb" through an online poll conducted by Ninemsn in 2010.
This is a quick Park and Go cache, but don't forget to scan for your clue.
Source: Wikipedia

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4Rods
Did you know that NSW has a geocaching association? Geocaching NSW aims to enhance and improve the activity of geocaching and holds regular events where geocachers meet to enjoy their common interests. Visit the association website here.