Eric, lots of choices! Here are three more possibiities to what I am sure will become a long list!
One of the three rivers emptying into the Ottawa from the Quebec side from Fort Coulonge westward would make for a nice trip. From west to east are the
Dumoine, the
Noire, and the
Coulonge.
Using
Esprit Whitewater, an outiftter as well as a rafting company located in Davidson, Quebec to shuttle you to the start point of one of them and then paddle back to Davidson over a one-week to ten-day period.
Esprit’s website -
https://whitewater.caOther forum members will be able to provide the names of other possible outfitters or individuals who do shuttles for the three rivers I've mentioned.
Here is what a shuttle from Davidson to the Coulonge headwaters would look like:
Shuttles to the top of the Noire or of the Dumoine would be a bit shorter.
An essential source of information on these rivers and what they involve in terms of rapids and portages is Hap Wilson’s
Rivers of the Upper Ottawa Valley. amazon.com has a copy for US $20.
https://www.amazon.com/Rivers-Upper-Ott ... 1550464388My brother and I did the Coulonge in 2016 right from Hwy 117 to the headwaters in Lac au Barrage and then down to the Ottawa. We picked it because it is the longest of the three rivers mentioned. When we got to the Ottawa River we just kept paddling downriver to the city of Ottawa itself.
The following post has maps, some details on logistics, and links to day-by-day reports.
https://albinger.me/2016/10/20/canoeing ... ning-maps/