Larch-fir stands in northwest Montana were experimentally logged to determine the influence of increasingly intensive levels of utilization upon rates of yarding production, under three different silvicultural prescriptions. Variables influencing rate of production were also identified.
Gardner, Rulon B. 1980. Skyline logging productivity under alternative harvesting prescriptions and levels of utilization in larch-fir stands. Res. Pap. INT-RP-247. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 35 p.