Years ago Harlan from Red Lake Outfitters sold some 1:50,000 topos with portages and campsites marked on them. Are these available anywhere anymore?

Ask Richard the owner of Chukuni Outdoor Supply in Red Lake. He might know.

https://chukunioutdoorsupply.ca/home

Try contacting Marten on this board, he might be able to help you.

I can provide a GPS file with my info gathered over the years. With all the fires in recent years be sure to check with the park office as the burned areas require a lot of frequent maintenance to clear falling trees