 He did, however, obtain a trigonometrical survey of Mount King George and his surveys of the Blue Mountains allowed Mitchell to establish a new road to Bathurst later that year.In 1828 Dixon surveyed the area to the north of what is now the town of Goulburn which at that time was known as the "Goulburn Plains".The original township was based on the banks of the Wollondilly River to the south of what is now the Pejar Dam but was moved to its present site in 1833.