Thanks for the links to the 1982 maps. The '82 Canadians were at Hartney about 100km further west from this year's terrain in Spruce Woods PP, current map
. The North Americans were at Seton Park which is about 20km north of Spruce Woods, on the north side of the Trans Canada, current map
. Both similar terrains. One of the differences is the lines of high dunes in Spruce Woods - typically with steep heavily wooded slopes on the north and east sides. These lines of dunes will be one of the factors to consider in route choice decisions. Also far less trails in Spruce Woods.
I have heard of Eb's Trails but never seen the map - anybody got a link to it?
You may need to be a bit careful about the poison ivy but at least you wont need to carry bear spray!