Geographic information is held in Geographic Information Systems (GIS) and can include any data that can be mapped. Most Councils now maintain GIS records and use this to map their public infrastructure (such as roading, stormwater, etc) and overlay this on on maps of property boundaries.
They also normally include a layer which shows aerial photography. This information is normally available online via Council's website. View links to Council websites.
It is important to appreciate the limitations inherent in such systems. The data is only as accurate as the source of the data and how this data has been correlated with other data in the system. Unless one has this information or you have a software system that can digitally correlate data (such as rescaling aerial photography) then GIS data should be viewed as being indicative only.