<p dir="ltr">Measured soil and mapped environmental variables to be used in a Random Forest model. d13C and d15N were also measured, and will be published seperately. Until then, d13C and d15N data are available upon request.</p><p dir="ltr">Random Forest regression model used to understand relationship between subsoil OC and soil and environmental covariates to elucidate the controls on subsoil OC formation under perennial pasture grazing in Northern NSW, Australia.</p>