BonnieBrae

BonnieBrae is a soil carbon project located in the Wimmera region of Victoria, approximately 15km northeast of the small township of Marnoo and about 50km west of St Arnaud. Registered in August 2020, the project covers 376.5 hectares of agricultural land. The region is widely known for its mixed farming operations, combining broadacre cropping (such as wheat and barley) with sheep and cattle grazing.

The project operates under the 2018 Soil Carbon methodology, which requires landholders to sample soil carbon levels to establish a baseline before implementing new management activities. To generate Australian Carbon Credit Units (ACCUs), the project proponent, Prue McAllister, has undertaken activities including altering grazing intensity, applying nutrients to address soil deficiencies, and rejuvenating pastures. The goal is to measure a physical increase in soil organic carbon stocks over time, which is then credited after subsequent sampling rounds.

Environmentally, the Marnoo area typically experiences a semi-arid to temperate climate with an average annual rainfall of approximately 450mm. The landscape often features the fertile but heavy "cracking clay" soils characteristic of the Wimmera, alongside lighter loam variations. Prue McAllister is a known figure in the local Northern Grampians community and Landcare network, having previously served as a school principal and participated in biodiversity initiatives such as wetland creation and bio-corridor establishment on her properties.