Lakes States Aspen Report No.4
U.S. Department of Agriculture, Forest Service, Lake States Forest Experiment Station
In the manufacture of aspen lumber, the costs of stumpage and logging approximate 65 per cent of the total, and milling and sales 35 per cent. Milling efficiency is essential, but by itself it is not assurance of a profitable operation.
Telford, C.J. and Malcolm, F.B. 1947. Milling of aspen into lumber. Lake States Aspen Report. No. 4. U.S. Department of Agriculture, Forest Service, Lake States Forest Experiment Station