In 1839, the Port Phillip district consisted roughly of most of the area that is now known as the state of Victoria. Henry Fyshe Gisborne was appointed the first Commissioner of Crown Lands for this district. He arrived overland from Sydney with his Border Police and a large array of horses in September of that year and was based at the large Mounted Police barracks where the Melbourne Cricket Ground now stands. In January 1840, Gisborne with some of his Border Police troopers and a contingent of New South Wales Mounted Police went on a mission up the Yarra River valley to arrest a group of Wurundjeri led by Jacky Jacky who were armed with firearms. Gisborne's group encountered the Wurundjeri at Yering where a firefight took place between the two opposing sides. Both sides withdrew from the contest with no clear victory. This event later became known as the Battle of Yering. Gisborne was soon after called upon to go with his troopers to the Mount Macedon region to quell Aboriginal resistance in this area. Due to the strong native opposition near Mount Macedon, Gisborne set up a Border Police outpost in this region. These barracks later evolved into the town of Gisborne which was named in the commissioner's honour. The barracks are now part of the Wyabun Park property.