Yellow Dog - A) 'Upper Dog': Mulligan Truck Trail to CR510 (8.3 miles) (MI)
Possible ELF (Extreme Low Flow) scrape run.
A steep and jumbled falls will be a portage for the vast majority of boaters at virtually all water levels.
A low-water, summer hike-in video (via YouTube) shows how steep and jumbled the bedrock is. (NOTE: This has been 'cued' to start at 0:15 seconds into the video. If you restart at the beginning, there is a brief look at "Hills Falls", the first drop of the lower section of the Yellow Dog River.)