Why did South Australia take control of the Northern Territory in 1863?

South Australia took control of the Northern Territory in 1863 primarily due to the promising reports provided by explorers. Expeditions led by Augustus Charles Gregory in 1855–56 and John McDouall Stuart between 1858 and 1862 suggested that the region contained high-quality land suitable for cattle grazing.12

Following these findings, South Australia moved to acquire the territory, and the British government granted it to the colony in 1863. While South Australia held ambitious plans for the region's development—including the establishment of settlements and the construction of the Overland Telegraph line—the colony ultimately struggled to manage the territory profitably, eventually transferring control to the Commonwealth of Australia in 1911.123