Queensland is the north-eastern state of Australia and has land borders with three other Australian states and territories: New South Wales (to the south), South Australia (to the south-west) and Northern Territory (to the west). To the north of Queensland is the Torres Strait separating the Australian mainland from Papua New Guinea. To the east of Queensland is the Coral Sea, part of the Pacific Ocean. There are many islands off the Queensland coast which form part of the state of Queensland.
The far western boundary with the Northern Territory is aligned along the 138th meridian east until Poeppel Corner at the intersection of this meridian and the 26th parallel south. It is here that Queensland borders South Australia. The boundary follows this latitude until it reaches the 141st meridian east at Haddon Corner where the border turns south reaching Cameron Corner on the 29th parallel south, the most western part of the border with New South Wales. The border follows this latitude towards the coast at about the 154th meridian east before following the courses of a number of rivers, then across a number of mountain ranges until it reaches Point Danger. From west to east, these rivers are the Barwon River, Macintyre River and Dumaresq River.
Southern border towns include Mungindi, Goondiwindi and Texas.