I know exactly where you're taking about, Otter Rapids I think? Or is it Abitibi Canyon, the one South of that. Never actually been, just rode through on the Polar Bear express. Never posted an update about that, but it was amazing being so remote, the scenery was beautiful and the birds were awesome. These are some of my favourite eBird lists from up there:
https://ebird.org/canada/checklist/S50620818
https://ebird.org/canada/checklist/S50620757
I might go back this summer, but I'll have to see what else I'm doing first! Saskatchewan breeding bird atlas starts this year, and I was considering applying to some of that.