Published July 1981. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Final project report to U.S. Forest Service Pacific Northwest Forest and Range Experiment Station and Missoula Equipment Development Center, under cooperative agreement number 228.
Published November 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog