From the perspective of improving habitat quality for wildlife, harvesting (clearcutting) with residual blocks represents an alternative to large-area clearcuts, in which the harvested areas are separated by narrow leave strips of standing timber. In 1997, Quebec's Ministry of Natural Resources and Ministry of the Environment and Wildlife cooperated with Donohue Inc. and FERIC in a study that is comparing the economic impacts and wildlife utilization for the two harvest scenarios. This Technical Note describes the results of a comparative analysis of harvesting costs for the two approaches, and demonstrates that over a 30-year horizon, the approach with residual blocks averaged approximately $0.45 to $0.67 per m3 more expensive on an annual basis (0ver a 30-year period) than the current practice of using leave strips.