Tom McKee shared, in
Boater Talk,
"Sweet Run
Only a few people have paddled this creek but it could very well be one of Maine's hardest and most fun runs. I only got to do about the top 2 miles and had to hike out due to low water. Check out the 'Falling Down' video (I think) _(Chris Gorman: "The video is called 'Over the Edge'")_, there is some nice footage of BJ and co. doing some of the big drops. If you do get on it, watch out for serious undercuts and very sharp rock. This run is not a typical Maine creek for this reason. Also, if you hike up to do the very top, make sure you either go up the AT side (river left) or, if you go up river right, check in at the lodge and ask permission." The initial descent was in the 1993 by Bill and Joan Hildreth and Glenn Belongie.
Approx. gradient, mile-by-mile: 160, 230, 140, and 110 in the last 0.5 . Fun!, but there are some spots where the countour lines fall right on top of one another...like, 100 feet in less than 0.2 miles.