What do Boreal Forests look like? (past and present)

1. 
   Hume, George Sherwood. Abasand Plant. 1940s. IMAGINING THE TAR SANDS 1880-1967 AND BEYOND. <http://imaginations.csj.ualberta.ca/?p=3600>, Canada.

             

Wikipedia contributors. "Eastern forest-boreal transition." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 1 Sep. 2015. Web. 16 Nov. 2015.