PliNUS BANKSIANA IN MINNESOTA 



111 



the time of settlement, was in all probability evergreen forest 

 during the later glacial periods, which did not disturb any portion 

 of southeastern Minnesota. In fact it is not unlikely that the 



Fig. 2. Map showing forest areas of Minnesota 



wholly driftless area of Minnesota and the adjoining states har- 

 bored such forests throughout all the time that glaciers were 

 sweeping around it, first on one side and then on another. That 

 evergreen forests can exist in close proximity to and even upon 

 glaciers is shown by conditions which now obtain in the Selkirk 

 Mountains and in Alaska. 



