Good story! Looking forward to the rest.
Jeff's Map for Temagami is available on line and shows the portages from Florence and down to the upper Yorston area accurately. That map generally has some accuracy problems, but the upper Yorston part is good.
A couple of the portages get harder to find and follow than the first long one though, so plan lots of time.
I guess you have learned to tie your canoe to a tree overnight?
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shearjoy Sometimes your joy is the source of your smile, but sometimes your smile can be the source of your joy. Thich Nhat Hanh