The "Whereis" website provides online street maps for most major cities & towns across all states and territories of Australia based on the "UBD" Universal Business Directory.
The Sydways directory is available online at www.street-directory.com.au and includes more details on building names, walking paths and the like.
If you are considering bushwalking or getting off the beaten track, then NSW Government Mapping has detailed topographic maps including navigational refererences available online.
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