(2014) Heinselman, Miron L.; Trygg, J. W.; United States Department of Agriculture; United States Forest Service
The Logging History Maps are maps annotated by Miron "Bud" Heinselman and J.W. "Bill" Trygg. The maps were given to the University of Minnesota by the author in 1992. The maps were used by the author for his book, The Boundary Waters Wilderness Ecosystem (University of Minnesota Press, 1996).