Gundagai local, Mason worked with the Conservation and Landscape Ecology Group at The Australian National University for 18 years before the establishment of Sustainable Farms. Initially charged with set up and field management for the South West Slopes Restoration Study, Mason has managed and assisted several projects such as the Nanangroe Natural Experiment and Jervis Bay Fire Study. A seasoned field ecologist, Mason has vast knowledge of Australian flora and fauna, particularly with regard to forest and woodlands.
As part of his PhD with The Australian National University, Mason investigated the demographics, home range and behaviour of squirrel gliders in agricultural landscapes of the South West Slopes, in order to improve their conservation. Additionally, Mason is involved in restoration of box gum grassy woodlands in the western slopes area and, with his wife Miriam and their three children, also runs a pastoral property near Coolac, integrating biodiversity conservation into the running of their fat lamb enterprise.
As of late 2017 Mason has been a key part of the Sustainable Farms project. His role incorporates many aspects of his previous work with the Conservation and Landscape Ecology Group, but now includes the establishment and maintenance of the Sustainable Farms farmer network and a significant extension role providing information and assistance to farmers and associated organisations in achieving sustainable agriculture.