Yerrinbool
![https://en.wikipedia.org/wiki/Yerrinbool,_New_South_Wales](https://hotrails.net/wp-content/uploads/2015/10/Yerrinbool_aerial-e1444094656196-350x200.jpg)
As we get closer to Sydney, the Southern Highlands constricts down to a narrow spit of cleared land nestled between the Blue Mountains on the west and the Upper Nepean gorge on the east, and almost all of the transport infrastructure squeezes into a narrow 500m-wide band between Yerrinbool and Bargo. This limits the room available for deviations but also gives us a choice of several existing corridors to utilise.