In the Fall of 1989 FERIC monitored the self-drafting winged subsoiler built by Tilth Inc. of Monroe, Oregon. The self-drafting winged subsoiler has already become established as a soil tillage implement for treating artificially compact soils. The objective of this trial, near Prince George, B.C., was to determine if this tool can be used effectively on naturally compact soils. Pretreatment assessment, time analysis, and posttreatment assessment were completed. The results are presented in this report. The B.C. Ministry of Forest (Forest Sciences Section) will publish a comprehensive research report after the biological and pedological results have been compiled and analysed. Other recent B.C. trials are also discussed.