Woods and Mill Utilization in Northern Idaho and Western Montana

Twenty per cent of the average western white pine tree of the Inland Empire is not utilized; for western yellow pine the loss is 23 per cent; for larch 31 per cent and for Douglas fir 22 per cent. Details accounting for the loss are shown graphically in four charts, the data for which were obtained from a mill study of 22,000 logs and a woods study of 7,000 trees.