There is no Australian state which shares a border with all other states. No state except for Victoria shares a land border with Tasmania. South Australia shares a border with all mainland states and the Northern Territory.
South Australia
The top of Queensland is the most northern part of Australia. This is known as Cape York Peninsula. The most northern single state or territory is the Northern Territory. , and it does not extend as far south on its southern border as Queensland.
The State of South Australia completely adjoins the southern border of the Northern Territory.
The Australian Alps are the highest mountain range on mainland Australia. Part of the Great Dividing Range which extends from the northern tip of Australia right down to Victoria, the Australian Alps are positioned roughly in Australia's southeast, on the border of Victoria and New South Wales.
The question does not make sense. All of the states of Australia share a border with another state. Even Tasmania, the island state, shares an actual land border as well as a water border with another state.
the unicorn territory, and the dinosaur river
The Australian state with the longest border is Western Australia, which shares extensive borders with the Northern Territory and South Australia. Western Australia's border measures approximately 3,400 kilometers. Australia's total land border length is around 8,000 kilometers, so Western Australia's border represents about 42.5% of the country's total border length.
Uluru is located in the Northern Territory of Australia because it falls within the borders of the Uluru-Kata Tjuta National Park, which was established by the Australian government to protect and preserve this sacred site for the Anangu people. The national park was created in 1950, and Uluru has since become a significant cultural and natural landmark in the region.
Alaska
It is Alaska.
Poeppel Corner is where the borders of the Northern Territory, South Australia and Queenslandmeet.
Northern Ireland - it shares a border with Eire - but is a separate island from the mainland.