Castle Hill Station Human-Induced Regeneration Project (Revoked)

Castle Hill Station Human-Induced Regeneration Project (Revoked) was a human-induced regeneration project located approximately 83km west of Winton and 79km east of Middleton in outback Queensland. Registered in November 2017, the project covered a substantial area of 51,990 hectares. The region is situated within the Mitchell Grass Downs, an area predominantly used for extensive grazing of cattle and sheep.

The project operated under the Human-Induced Regeneration (HIR) methodology, which credits landholders for allowing native forests to regenerate by ceasing activities that suppress growth, such as mechanical clearing or uncontrolled grazing. In this instance, the project involved managing the timing and extent of grazing to facilitate the recovery of native vegetation. The local environment is semi-arid, characterized by hot summers and variable rainfall. While the surrounding plains typically feature heavy cracking clay soils, the specific "Castle Hill" area and nearby Cawnpore Hills are known for rugged terrain with red soils, sandstone, and stony plateaus.

Notable for its geological features, Castle Hill Station reportedly hosts one of Australia's hottest artesian bores, with water reaching surface temperatures of up to 99°C. The carbon project itself was voluntarily revoked in September 2022 under section 30 of the CFI Rule. Although it held a Carbon Abatement Contract (CAC509112) for over 95,000 tonnes of abatement, records indicate that the contract was terminated with zero units delivered to the Commonwealth prior to the project's revocation.