This cache is to highlight a significant place in the recent history of Hobart, and bears a few significant reminders of its former days.
Within 25m of this cache is the location of the Western landing of the former Bailey Bridge which was built by the Army to provide a connection to the Eastern Shore. The Bailey Bridge opened on 16/12/1975 (nearly twelve months following the Tasman Bridge incident). The Bailey Bridge spanned the Derwent over to the newly-constructed causeway from Clebourne Point (visible to the East). You can view two photographs taken on 01/04/1976 here. Additionally, this photo from the Maritime Museum Archive is taken from close to GZ.
To the east is the historic 1830's Cleburne Homestead, at one point called the Mount Direction Homestead. The homestead still exists despite its encirclement by the East Derwent Highway and Goodwood Road onramp. Most of the buildings have been converted to very nice Tourist Accommodation with modern art yet retaining the original character (I believe the buildings are also National Trust listed).
The whole site can be viewed here in the background of this aerial photo from the 1930s which also shows the early extents of the Nyrstar (previously Pasminco) Electrolytic Zinc Smelter, which is located to the South, across the mouth of Prince of Wales Bay and behind the Internataional Catermerans (InCat) boatyard. Incidentally, the MONA ferry terminal was constructed by FairBrother on the earth to the right of the InCat sheds, then dug out and floated down the river.
To the west there is a Qantas call centre, behind that a Centrelink call centre and further north-west from that is the Tasmanian Technopark complex. Inside the confines of the Technopark are several businesses including the News Limited printing facility and the building previously occupied by the Printing Authority of Tasmania (now occupied by PML also a printing logistics company). On Longreach Av there is access just before the black wire fence starts, however, this is not strictly recommended unless you are wearing durable pants. Where the Qantas call centre is now located is approximately the location of the former Motorcycle Rider Testing Facility for Hobart. For some years, this is where Hobartians came to be tested.
The view to the north is dominated by the Bowen Bridge; which was announced by the Whitlam Government, funded by the Fraser Government and opened by Hawke not long into his term. The bridge is landed to the West north of the cache site, and to the East north of the Cleburne Point. The bridge itself is a pre-stressed concrete box girder bridge using match cast segmental cantilever construction; has 10 109m spans, 9 piers and is supported by 13.5m diameter caissons which sink up to 50m below the riverbed to be keyed into the bedrock far below the river's surface. The recommended approach to the cache site is by descending the steps to the left of Western bridgehead abutment on the North side of the road. Whilst it is possible to park nearby the access is difficult and not guaranteed to be unlocked so it is recommended to park in the direction of Dowsing Av and walk up from there. The bridge was designed by Maunsell and Partners and constructed by Leighton-Candac Joint Venture, with most offsite concrete casting being carried out at the nearby Wilkinson's Point (which also staged parts of the construction of the rebuilt Tasman Bridge box girder sections), where there is still evidence today of various elements of construction including the shape of the coffer dams and cassion cap noses.
Please absorb the above very carefully, there will be a test on it later!
Cache is now a micro due to mugglings. No more room for swaps. BYO pen.