U.S. Route 66 in Kansas new Interstate highway crossed directly from Oklahoma to Missouri, bypassing Kansas entirely. US-69 Alternate was formed in 1985 when US-66 was decommissioned; the remainder of US-66 in Kansas became K-66. The final (1985) alignment of US-66 therefore perfectly matches present US-69 Alternate and K-66. Coming from the west, US 66 entered Kansas from Oklahoma, concurrent with US-69 Alternate, also called Military Avenue. From the state line, the highway ran north through Baxter Springs. At the intersection of US-66 with West 30th Street, the highway originally traveled east onto West 30th Street and then north onto Roberts Road to get back
South Australian borders became the SA/CA border. In 1931 North Australia and Central Australia were reunited as the Northern Territory (12 June 1931 - Map). From 1931 26° south once again became the SA/NT border. Marking the South Australian borders on the ground has a fascinating history. "See History of fixing SA/WA border on the ground" The actual West Australian border with the Northern Territory and South Australia, which has been marked on the ground, is not as straight as it looks, with the WA/NT and WA/SA borders being displaced by approximately 127 m due to early survey errors within the limits of