Yass Junction railway station is located outside of Yaas due to the refusal to build the Main South line through the middle of Yass as it will be more expensive; therefore, leading to the present route from Gunning to Bowning.
Yass Junction station is located outside of Yass due to the refusal of the Engineer-in-Chief of the New South Wales Railways, John Whitton to build the Main South line through the middle of Yass itself. After a visit on 8 December 1871, to investigate possible routes for the extension of the line from Goulburn, Whitton remarked that "to bring the station to North Yass would increase the length of the line by about three quarters of a mile; that the cost would be considerably more than I had recommended, probably 30,000 or 40,000 for works alone; and that in an engineering point of view [a] divergence to North Yass could not be entertained. Instead, the present route from Gunning to Bowning was chosen which passed four kilometres to the north, with the station opening on 3 July 1876 as Yass. 
