Kamilaroi Highway is a state highway located in the north-western region of New South Wales, Australia, and links via and to . The highway is named after the Kamilaroi Indigenous Australian people who live in the area. Route The highway begins at the intersection with Mitchell Highway at Bourke, and heads in an easterly direction through Brewarrina and Walgett to meet Newell Highway in northern Narrabri. It recommences from the intersection with Newell Highway in southern Narrabri and continues in a south-easterly direction via Gunnedah and Quirindi to eventually terminate at the intersection with New England Highway just north of Willow Tree. Approximately north of Boggabri is a spectacular landmark called Gin's Leap, known in the days of Cobb and Co as "The Rock". It is said that a young Aboriginal girl, being pursued by white settlers on horseback, jumped to her death rather than be raped and shot like others in her family. History The passing of the Main Roads Act of 1924 through the Parliament of New South Wales provided for the declaration of Main Roads, roads partially funded by the State government through the Main Roads Board (later the Department of Main Roads, and eventually Transport for NSW). Main Road No. 68 was declared from Bourke via Brewarrina to Walgett (and continuing northwards via Collarenabri and Mogil Mogil to the state border with Queensland, and westwards via Louth, Wilcannia, Menindee and Pooncarrie to Wentworth), Main Road No. 126 was declared from Quirindi via Gunnedah and Boggabri to Narrabri (and continuing northwards via Bellata and Moree to Boggabilla), and Main Road No. 127 was declared from Narrabri to Wee Waa (and continuing west via Pilliga to Walgett) on the same day, 8 August 1928. With the passing of the Main Roads (Amendment) Act of 1929 to provide for additional declarations of State Highways and Trunk Roads, these were amended to Trunk Road 68 and Main Roads 126 and 127 on 8 April 1929. The Department of Main Roads, which had succeeded the MRB in 1932, later declared Trunk Road 72 from Narrabri via Boggabri to the intersection with State Highway 11 (Oxley Highway) in Gunnedah (and continuing north via Bellata to Moree) on 18 July 1933; the northern end of Main Road 126 was truncated to meet State Highway 11 at Gunnedah, but these declarations were altered only 3 months later, when the southern end of Trunk Road