There are rainbows in Medley River and stocked in Little Bear Lake. They used to stock Cold Lake with everything including Kokanee back in the day but now that area of Alberta and Sask have very little stream stocking. I believe the Cold River was stocked with Grayling and brookies at one point in time as well. There may still be some brook trout in Broad Creek but I would say the other previously stocked creeks like Dennis, Taylor, De La around and Low creek don’t look like anything would be self sustaining and still in there.
If you drive a few hours east to Prince Alberta you have Narrow Hills Provincial Park with oodles of stocked trout streams and lakes. Great place to get your first Tiger Trout or Splake. I do a lot of belly boat fishing up there. The streams are good fishing as well.